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         Lattice:     more books (100)
  1. Statistical Mechanics of Lattice Systems: Volume 1: Closed-Form and Exact Solutions (Theoretical and Mathematical Physics) by David A. Lavis, George M. Bell, 2010-11-02
  2. Continuous Lattices and Domains (Encyclopedia of Mathematics and its Applications) by G. Gierz, K. H. Hofmann, et all 2003-04-21
  3. Orthomodular Lattices (London Mathematical Society Monographs) by G. Kalmbach, 1983-02-11
  4. Trends in Lattice Theory by J. C. Abbott, 1970
  5. Garden lattice quilts (Quilt in a day series) by Eleanor Burns, 2002
  6. Lattice-Gas Cellular Automata and Lattice Boltzmann Models: An Introduction (Lecture Notes in Mathematics) by Dieter A. Wolf-Gladrow, 2000-03-15
  7. Grammar of Chinese Lattice by Daniels Sheet Dye, 2000-12-31
  8. Quantum Fields on a Lattice (Cambridge Monographs on Mathematical Physics) by Istvan Montvay, Gernot Münster, 1997-03-13
  9. The Statistical Mechanics of Quantum Lattice Systems (Ems Tracts in Mathematics) by Yuri Kondratiev, Yuri Kozitsky, and Michael Rockner Sergio Albeverio, 2009-07-15
  10. Lattice Theory Preliminary 3RD Edition by Garrett Birkhoff, 1963
  11. THERMAL LATTICE BOLTZMANN TWO-PHASE FLOW MODEL FOR FLUID DYNAMICS by Peng Yuan, 2009-10-09
  12. Molekulare Gasdynamik: Einführung in die kinetische Theorie der Gase und Lattice-Boltzmann-Methoden (German Edition) by Dieter Hänel, 2004-04-19
  13. Scale-Isometric Polytopal Graphs in Hypercubes and Cubic Lattices: Polytopes in Hypercubes & Zn by Michel Deza, Viatcheslav Grishukhin, et all 2004-04
  14. Branch Lattices & Positive Operators (Grundelhren Der Mathematischen Wissenschaften) by H. H. Schaefer, 1975-02

61. Periodic Table - WebElements : Lattice Energies : Periodic Table Navigator
This page contains a periodic table navigator for lattice energies in WebElements.
http://www.webelements.com/webelements/elements/text/periodic-table/latt.html
Chemistry: WebElements Periodic Table Professional Edition Links to data : lattice energies
Pick element... Pro Home Scholar Home Chemistry Books (USA) Chemistry Books (UK) ... Periodic table poster links to data Key data; description Index for links to data History links to data around us Uses Geology Biology links to data compounds Reactions of links to data Compounds Bond enthalpies Radii in compounds ... Reduction potentials nuclear properties NMR Naturally occurring isotopes Radioisotopes element properties Bulk properties (density, resistivity, etc.) Thermal properties (melting point, etc.) Thermodynamic properties Crystal structure electronic properties Electronic configuration Ionization energies Electron affinities Electronegativities ... Valence shell radii WebElements
Buy a periodic table wall chart
Buy a periodic table t-shirt Printable periodic table Sponsor links to data Science book store (UK) PalmElements for your Palm WapElements for your phone Acknowledgements Help About WebElements FlashElements for Macs and PCs Search by keywords:
Links to lattice energies data

62. Complexity Of Lattice Problems: A Cryptographic Perspective
Complexity of lattice Problems A Cryptographic Perspective is an essential reference for those researching ways in which lattice problems can be used to
http://www-cse.ucsd.edu/~daniele/papers/book.html
Complexity of Lattice Problems
A Cryptographic Perspective
Authors: Daniele Micciancio and Shafi Goldwasser The Kluwer International Series in Engineering and Computer Science, vol. 671. Kluwer Academic Publishers. March 2002, 220 pages ISBN 0-7923-7688-9 [BibTeX] [Amazon] [Kluwer]
Description
Complexity of Lattice Problems: A Cryptographic Perspective is an essential reference for those researching ways in which lattice problems can be used to build cryptographic systems. It will also be of interest to those working in computational complexity, combinatorics, and foundations of cryptography. The book presents a self-contained overview of the state of the art in the complexity of lattice problems, with particular emphasis on problems that are related to the construction of cryptographic functions. Specific topics covered are the strongest known inapproximability result for the shortest vector problem; the relations between this and other computational lattice problems; an exposition of how cryptographic functions can be built and proven secure based on worst-case hardness assumptions about lattice problems; and a study of the limits of non-approximability of lattice problems. Some background in complexity theory, but no prior knowledge about lattices, is assumed. The aim of the authors is to make lattice-based cryptography accessible to a wide audience, ultimately yielding further research and applications. Complexity of Lattice Problems: A Cryptographic Perspective will be valuable to anyone working in this fast-moving field. It serves as an excellent reference, providing insight into some of the most challenging issues being examined today.

63. The LATTICE -- FreeForm Science Fiction RolePlaying
The lattice FreeForm SciFi RPG, an infinite grid of artifical worlds, built billions of years ago and abandoned by an ancient alien race of neargodlike
http://lattice.mysteryandmagic.com/
Welcome to the Lattice
Your browser does not support FRAMES. You must upgrade to the FREE current version of or Microsoft Internet Explorer to access this game. If you have questions, please e-mail the LatticeMaster

64. The Geometry Junkyard: Geometry Of Numbers
Informally, a lattice is an infinite arrangement of points spaced with sufficient See also Sloane s spherepacking and lattice theory publications.
http://www.ics.uci.edu/~eppstein/junkyard/lattice.html
Lattice Theory and Geometry of Numbers Informally, a lattice is an infinite arrangement of points spaced with sufficient regularity that one can shift any point onto any other point by some symmetry of the arrangement. More formally, a lattice can be defined as a discrete subgroup of a finite-dimensional vector space (the subgroup is often required not to lie within any subspace of the vector space, which can be expressed formally by saying that the quotient of the space by the lattice is compact). The simplest and most commonly-studied example of a lattice (the "integer grid") is formed by the points all Cartesian coordinates of which are integers. Other types of lattices arise in crystallography and in sphere packing , where they are used to describe the locations of atoms or spheres. Lattices are also particularly important in the theory of periodic tilings , since they describe the set of translational symmetries of a tiling.
  • Catalogue of lattices Sloane's sphere-packing and lattice theory publications
  • Connect the dots . Ed Pegg asks how many sides are needed in a (self-crossing) polygon, that passes through every point of an n*n grid. I added a similar puzzle with circular arcs.
  • Crystallographic topology . C. Johnson and M. Burnett of Oak Ridge National Lab use topological methods to understand and classify the symmetries of the lattice structures formed by crystals. (Somewhat technical.)
  • Equilateral triangles . Dan Asimov asks how large a triangle will fit into a square torus; equivalently, the densest packing of equilateral triangles in the pattern of a square lattice. There is only one parameter to optimize, the angle of the triangle to the lattice vectors;

65. Lattice Computers
In crystallography A3, the facecentered cubic lattice (found, for example, in crystalline argon), is based on a standard, space-efficient stacking of
http://www.cis.udel.edu/~case/lattice.html
Lattice Computers
A lattice is essentially a discrete analog of a vector space and is of importance, for example, in crystallography. In crystallography A3, the face-centered cubic lattice (found, for example, in crystalline argon), is based on a standard, space-efficient stacking of oranges or cannon balls. Below is a picture of a tiny lattice computer where the identical, synchronized processors (pictured as big spheres) are connected (by identical communication links) to A3-lattice nearest neighbors.
This project has involved developing theoretical underpinning and algorithms for lattice-connected, parallel processing computers, which computers are intended to provide useful, natural, and provably controlled , efficient simulations of the motion of objects in space. The algorithms developed (and being developed) show that controlled, discrete, linear in real time, analog simulation of continuous motion is possible and feasible in lattice computers. Our algorithms to date can found in the REPRESENTATIVE PUBLICATIONS below together with Anil Shende 's Ph.D. dissertation, done under my direction:

66. Crystal Lattice, Face Centered Cubic
This is the maximum packing efficiency for spheres of equal radius and is call closest packing. Thus a face centered lattice of atoms is also called Cubic
http://wb.chem.lsu.edu/htdocs/people/sfwatkins/MERLOT/lattice/04fcc.html
Crystal Lattice Structures Previous Next Introduction Simple Cubic ... Exercises Face Centered Cubic In the Face Centered Cubic (FCC) unit cell there is one host atom at each corner and one host atom in each face. Since each corner atom contributes one eighth of its volume to the cell interior, and each face atom contributes one half of its volume to the cell interior (and there are six faces), then Z = The corner and face atoms touch along the face diagonal , and it is easy to show that the cube edge (a) is about 2.8r. Thus, the corner atoms do not touch one another. The packing efficiency is about 74%. This is the maximum packing efficiency for spheres of equal radius and is call closest packing . Thus a face centered lattice of atoms is also called Cubic Closest Packing (CCP). Previous Next Steven F. Watkins, Department of Chemistry, Louisiana State University

67. PC Games: Solitaire Games, Board Games, Puzzle Games And Word Games: LatticeWork
Play the most popular varieties of freecell, klondike and spider solitaire; Comparison chart for freecell solitaire games, klondike solitairae games and
http://www.latticeworksw.com/
PC Games Downloads: Solitaire, Puzzle, Board, and Word Games
Change the way you play solitaire
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3D Ten Thousand This is the favorite of all of our PC Games . The game of 10,000 provides hours of entertaining PC games play for all ages. Our high-color 3D graphics present a safari setting, unique animation (dice sliding through grass), with realistic sound effects.
Free 3D 10,000 download More... Buy Now
Ancient Ivory has won a number of awards including the Microsoft Shareware Hall of Fame and two Shareware Industry Awards . It is a game of strategy and luck featuring your choice of stunning graphics, realistic animation and sound effects, and music, with an optional competitive computer opponent. Ancient Ivory is one of our most popular games.
Free Dice Game download More...

68. Lattice Incorporated
lattice Incorporated is a growing combination of talented and experienced solution providers focused on reliable and secure information and communications
http://www.latticeincorporated.com/
Home
About Us
Investor Relations ... Contact Us
Security and Reliability in IT and Communications for both Governmental and Commercial Solutions The technical solutions space is a fragmented one. Solutions that address vertical markets abound, sometimes flourishing in their niche but so thoroughly focused on it they struggle to expand. Limitations arise in two dimensions: Lattice Incorporated is devoted to weaving interlocking solutions in both dimensions. We offer a rich array of market expertise and technical ability. These are provided across many markets and include a variety of focused solutions. We bring advanced information and communications technology to the government and commercial markets. Our Solutions The company continues to focus on finding and integrating companies with highly secure advanced technology solutions suitable for deployment within key government agencies. Science Dynamics Corporation (SciDyn) is a provider of advanced information and communications technology to the government and commercial markets. The company's technical services division designs, deploys and manages advanced technological solutions at key government agencies and mid- to large- sized enterprises. SciDyn's technical products division consists of several core proprietary platforms used to develop customized software applications in multiple vertical markets. SciDyn's core technologies enable new and legacy software programs to be deployed and accessed remotely using DoD-certified security. Recently acquired operating subsidiary Ricciardi Technologies, Inc. (RTI) is a provider of advanced enterprise architecture services to government agencies. In addition to expanding SciDyn's customer base and revenue opportunities, RTI owns significant intellectual property in embedded sensor technology Sensorview. SciDyn anticipates significant benefits by merging proprietary technologies across multiple product lines.

69. Lattice
Definition of lattice, possibly with links to more information and implementations.
http://www.nist.gov/dads/HTML/lattice.html
lattice
(definition) Definition: A point lattice generated by taking integer linear combinations of a set of basis vectors. See also reduced basis Author: CRC-A Go to the Dictionary of Algorithms and Data Structures home page. If you have suggestions, corrections, or comments, please get in touch with Paul E. Black Entry modified 17 December 2004.
HTML page formatted Mon Sep 11 09:46:04 2006. Cite this as:
Algorithms and Theory of Computation Handbook, CRC Press LLC, 1999, "lattice", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed., U.S. National Institute of Standards and Technology . 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/lattice.html

70. Physics Today February 2004 - Article: Lattice Quantum Chromodynamics Comes Of A
In 1974, Kenneth Wilson at Cornell University formulated a version of QCD on a discrete spacetime lattice (see the left panel of figure 1) and,
http://www.physicstoday.org/vol-57/iss-2/p45.html
document.writeln(AAMB7); advanced
search
ADVERTISING JOBS ... Past issues articles
Lattice Quantum Chromodynamics Comes of Age
Quantum chromodynamics is the elegant but notoriously intractable theory of the strong interactions. Recent advances in numerical computer simulation are beginning to reveal, in impressive detail, what the theory predicts. Carleton DeTar and Steven Gottlieb February 2004 , page
Lattice QCD
In formulation, QCD and QED are strikingly similar. Both are gauge-invariant quantum field theories. The key difference is that photons in QED are neutral; so they can't interact directly with each other. The gluon is the QCD analog of the photon; it carries the strong force between quarks. But quite unlike photons, gluons do carry color charge, the analog of electric charge. So gluons interact directly with each other as well as with quarks. (See the article by Frank Wilczek in Physics Today, August 2000, page 22 That seemingly innocent change has dramatic consequences for phenomenology. It is the root of QCD's daunting complexity. Electrons, positrons, and photons can be separated and isolated at macroscopic distances. Quarks, antiquarks, and gluons cannot. This prohibition, called color confinement, assures that all the elementary particles (the hadrons) composed of quarks, antiquarks, and gluons come in precise color-neutral combinations. Loosely speaking, this means that they come either in quark-antiquark pairs (the mesons) or in triplets of quarks (the baryons). Several recently discovered "pentaquark" baryons appear to combine a quark triplet with a quark-antiquark pair (see

71. USQCD: US Lattice Quantum Chromodynamics
lattice QCD has made great strides in its ability to contribute to the analysis of flavor data, but in many cases there are exciting prospects for further
http://usqcd.fnal.gov/lattice-experiment2007.html
Lattice QCD Meets Experiment Workshop 2007
Fermilab
December 10-11, 2007
Purpose
With the increasing precision of flavor physics experiments, many crucial analyses are becoming limited by theoretical precision. Lattice QCD has made great strides in its ability to contribute to the analysis of flavor data, but in many cases there are exciting prospects for further improvement. This workshop will focus on the status and prospects for flavor physics theory and experiment, and the needs of theory and experiment from each other. Topics K D , and B mesons leptonic and semileptonic decays, meson-antimeson mixing, spectroscopy, future high-precision flavor facilities.
Program
Talks
Schedule of talks

Speakers : email links to your talks or pdf to mackenzie@fnal.gov for linking on the schedule web page.
Fermilab site map
The program will begin at 9:00 AM both days. It will run until around 6:00 PM on Dec. 10, and until midday on Dec. 11. The program will consist of overview talks focusing on summaries of current status, prospects, and the needs of theory and experiment from each other. The talks will be relatively brief, with ample time scheduled for discussion, as in the program from last year's BaBar/lattice workshop
Registration
Register by sending email to olivia@fnal.gov

72. Surface Diffraction And The Reciprocal Lattice
The most convenient way to link the real structure of the material to it s diffraction pattern is through the reciprocal lattice.
http://www.cem.msu.edu/~cem924sg/Reciprocal.html
[Go back to CEM 924 Home Page
Surface Diffraction and the Reciprocal Lattice
The diffraction of either photons or electrons (sometimes neutrons) is one of the most powerful techniques for surface structure determination. Unfortunately, the diffraction pattern is not a direct representation of the real-space arrangement of the atoms in a solid or on a surface. The most convenient way to link the real structure of the material to it's diffraction pattern is through the reciprocal lattice. In order for measureable diffraction to occur, the wavelength of the interrogating wave-particle should be on the same order as the periodicity of the features. For atoms or molecules in a crystalline solid, this periodicity is a few Angstroms. This means that if we are using photons to examine the lattice spacing of a solid, their wavelength should be a few Angstroms (x-rays). Consider a 5 keV photon: Now consider a similar calculation for the de Broglie wavelength of a 20 eV electron: So electrons of a few tens of eV and x-rays of a few keV are suitable for diffraction from an atomic lattice. These energy particles are more strongly backscattered from a solid towards the source than transmitted. In the case of x-rays the technique is often called Laue or von Laue Backscatter Diffraction and in the case of electrons the technique is called low energy electron diffraction (LEED). The angle of diffraction of the wave-particle is governed by the Bragg equation. Constructive interference between two out-going waves only occurs if the pathlength difference between them is equal to an intergral number of wavelengths. For this to occur, the Bragg equation

73. Structural Correlation Between Crystal Lattice And Lamellar Morphology In The Ph
Structural Correlation between Crystal lattice and Lamellar Morphology in the Phase Transitions of Uniaxially Oriented Syndiotactic Polystyrene ( and e
http://pubs.acs.org/cgi-bin/abstract.cgi/mamobx/asap/abs/ma071759z.html
Forms) As Revealed by Simultaneous Measurements of Wide-Angle and Small-Angle X-ray Scatterings @import url(/styles/article.css); ASAP Macromolecules ASAP Article Web Release Date: February 28, e Forms) As Revealed by Simultaneous Measurements of Wide-Angle and Small-Angle X-ray Scatterings E. Bhoje Gowd Naoya Shibayama and Kohji Tashiro Department of Future Industry-oriented Basic Science and Materials, Graduate School of Engineering, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan Received August 6, 2007 Revised Manuscript Received January 17, 2008 Abstract: e e e e Download the full text: PDF HTML
var SA_ID="acspix;acspix";

74. Liquid Simulation On Lattice-Based Tetrahedral Meshes
The tetrahedral meshes are built using a variation of the bodycentered cubic lattice structure that allows octree grading and deviation from the
http://www.cs.berkeley.edu/b-cam/Papers/Chentanez-2007-LSL/
"Liquid Simulation on Lattice-Based Tetrahedral Meshes"
Chentanez, N., Feldman, B.E., Labelle, F., O'Brien, J.F., Shewchuk, J. " Liquid Simulation on Lattice-Based Tetrahedral Meshes. " In Proceedings of ACM SIGGRAPH/Eurographics Symposium on Computer Animation , pages 219-228, San Diego, August 3-4, 2007 Download PDF
Examples
SCA Movie

75. Lattice-topped Blueberry Pie - The Boston Globe
Aug 22, 2007 Makes 1 deep doublecrust pie A food processor makes great pastry as long as you remove it from the work bowl when the pastry forms clumps.
http://www.boston.com/ae/food/articles/2007/08/22/lattice_topped_blueberry_pie/
Movies Restaurants Food Events ... Food
Lattice-topped blueberry pie
August 22, 2007 Makes 1 deep double-crust pie A food processor makes great pastry as long as you remove it from the work bowl when the pastry forms clumps. Finish shaping it on a floured counter. The amount of blueberries here fills a deep 9-inch glass pie pan with a fluted rim. Pans that are shallow plain round glass pans, for instance will take 6 cups of blues (use 5 frozen, 1 fresh), 1/2 cup sugar, and 4 tablespoons tapioca. Heap the berries in the crust so you'll have a domed pie when the fruit cooks down. PASTRY cups flour teaspoon baking powder teaspoon salt cup solid vegetable shortening (trans fat free), cut into several pieces tablespoons (1 stick) unsalted butter, cut up tablespoons sugar tablespoon distilled white vinegar egg tablespoons ice water Extra flour (for sprinkling) In a food processor, combine the flour, baking powder, and salt. Pulse for several seconds just to sift them. Add the shortening and butter. Pulse again until the mixture resembles coarse crumbs. Remove the processor lid. Sprinkle the sugar over the mixture and pulse quickly just to mix it in.

76. Lattice Energy --  Britannica Online Encyclopedia
Britannica online encyclopedia article on lattice energy the energy needed to completely separate an ionic solid, such as common table salt, into gaseous
http://www.britannica.com/eb/article-9000958/lattice-energy
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Page 1 of 1 the energy needed to completely separate an ionic solid, such as common table salt, into gaseous ions lattice energy... (75 of 96 words) To read the full article, activate your FREE Trial Close Enable free complete viewings of Britannica premium articles when linked from your website or blog-post. Now readers of your website, blog-post, or any other web content can enjoy full access to this article on lattice energy , or any Britannica premium article for free, even those readers without a premium membership. Just copy the HTML code fragment provided below to create the link and then paste it within your web content. For more details about this feature, visit our Webmaster and Blogger Tools page Copy and paste this code into your page var dc_UnitID = 14; var dc_PublisherID = 15588; var dc_AdLinkColor = '009900'; var dc_adprod='ADL'; var dc_open_new_win = 'yes'; var dc_isBoldActive= 'no';

77. Lattice Semiconductor Corporation
lattice Semiconductor Corporation designs, develops and markets high performance programmable logic devices, or PLDs, and related software.
http://www.chipdocs.com/manufacturers/LATIC.html
More than
components listed
5555 Northeast Moore Ct.,
Hillsboro,
Oregon 97124, US
tel: 1-503-268-8000
fax: 1-503-268-8556
http://www.latticesemi.com

Lattice Semiconductor Corporation designs, develops and markets high performance programmable logic devices, or PLDs, and related software. Lattice is one of the world's top suppliers of in-system PLDs, which can be configured and reconfigured even after being affixed to a circuit board. It also sells the software needed to customize its chips. Lattice's devices are used in computing, communications, industrial, and military electronics. The company focuses on design and testing, outsourcing its manufacturing to factories in Asia and the US. Overseas customers account for almost 55% of Lattice's sales.

78. CAEL/DOL Healthcare Lattice Program
“The ability of our staff to participate in the CAEL Career lattice project greatly increases their opportunities for learning and career growth.”
http://www.cael.org/healthcare.htm
-Emily Stover DeRocco, Assistant Secretary of Labor for Employment and Training,
US Department of Labor
-a program participant, Harris County Hospital District, Houston, TX
-Neal Eddy, Vice President for Learning and Strategic Integration, The Evangelical Lutheran Good Samaritan Society, Sioux Falls, SD
CAEL
Key Initiatives / CAEL/DOL Healthcare Lattice Program An Innovative Solution with Growth Opportunities The Nursing Career Lattice Program initiative addresses the national nursing shortage with the development of a career lattice program model to increase the number of Certified Nursing Aides (CNAs), Licensed Practical Nurses (LPNs) and Registered Nurses (RNs). The program assists both incumbent and newly hired workers to enter and advance in healthcare careers. The model seeks to:
  • Allow participants to earn while they learn in a competency-based apprenticeship Provide more flexible and robust learning opportunities Encourage a more diverse group to enter healthcare professions Improve workforce retention
Three Levels of Training The CNA Lattice
Certified Nurse Assistant (CNA) apprentices are hired as soon as they enter the program. Candidates come from inside the organization, from high schools, and from publicly-funded One-Stop Career Centers. Training includes:

79. XVIII International Symposium On Lattice Field Theory
Postal Address lattice 2000 Centre for Theoretical Studies Indian Institute of Science Bangalore 560012 INDIA; Phone At CTS +9180-309 2266, 309 2474
http://t8web.lanl.gov/LAT00/
THE XVIII INTERNATIONAL SYMPOSIUM ON
LATTICE FIELD THEORY
17-22 August 2000
Indian Institute of Science
Bangalore 560012, India
Welcome to the home page of Lattice 2000.
Choose the appropriate item for further details.
Manuscripts for proceedings sent to Elsevier: 27 November 2000 Publication at end of March 2001: Nucl. Phys. B (Proc. Suppl.) 94 (2001).

80. Quantum Logic With An Optical Lattice | Physical Review Focus
Researchers suggest that neutral atoms trapped in an optical latticea series of potential wells created by the interference of laser beamsmight offer
http://focus.aps.org/story/v3/st7
@import "/files/css/efc6c1e68c820f4ef3dd2d5cfb7ae405.css"; @import "/sites/default/themes/focus/page-node.css"; Previous Story Next Story Volume 3 archive Phys. Rev. Lett. (issue of 1 February 1999) Title and Authors
4 February 1999
Quantum Logic with an Optical Lattice
Ivan Deutsch/University of New Mexico Laser egg carton. Interfering laser beams can hold atoms in a precise array. In this arrangement, the atoms could form the basis for a quantum computer. Quantum computers could potentially calculate much faster than the silicon-based computers of today. Their advantage is that quantum computer bits can remain in two states at once as they perform operations, unlike conventional bits, which must commit to "0" or "1." The problem for designers is that these quantum bits (qubits) must remain well isolated to preserve their quantum nature, and yet be easily accessible for manipulation by the computer. The 1 February PRL describes a new type of quantum logic gate that might, at least in theory, meet those seemingly contradictory requirements. Researchers suggest that neutral atoms trapped in an optical latticea series of potential wells created by the interference of laser beamsmight offer advantages over the charged ions and atomic nuclei that are currently used. One of the most promising ways to build a quantum computer so far has been to trap ultracold charged ions in electric fields and manipulate them using lasers. But since these ions are charged, they interact readily with stray electric fields in the environment and are thus extremely susceptible to decoherencea loss of quantum character that prevents qubits from remaining in two states. Ivan Deutsch of the University of New Mexico in Albuquerque and Poul Jessen of the University of Arizona in Tucson and their colleagues propose using neutral atoms trapped in an optical lattice for quantum computing. Neutral atoms, they reason, will be less willing to interact with their environment. Moreover, atoms trapped in different wells of an optical lattice hardly influence one another, so a million atoms can potentially be operated upon at once.

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