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Profile Documents Logout
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NP Complexity
NP Complexity

The two-state vector description of a quantum system
The two-state vector description of a quantum system

... Strong measurement: The Aharonov-Bergmann-Lebowitz (ABL) formula: ...
Learning station X: Atomic Force Microscopy (AFM) - Quantum Spin-off
Learning station X: Atomic Force Microscopy (AFM) - Quantum Spin-off

...  Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.  NonCommercial — You may not use the material for commercial purposes. ...
Quantum Molecular Dynamics
Quantum Molecular Dynamics

... • Use quantum relations to generate effective interactions for electrons and ions Strengths  Maps a quantum problem to a classical one  Scales well to many more particles than other methods  Ability to do electron and ion dynamics near equilibrium  Codes are well developed and tuned ...
Open Quantum Physics and Environmental Heat Conversion into Usable Energy Brochure
Open Quantum Physics and Environmental Heat Conversion into Usable Energy Brochure

Lecture 22/23 1  Quantum  Mechanics
Lecture 22/23 1 Quantum Mechanics

Easy introduction to quantum informatics
Easy introduction to quantum informatics

β - Indico
β - Indico

talk by Paul McGuirk
talk by Paul McGuirk

... The unit of information in Quantum Computing is the Qubit, which is a two statesystem. Basic operations are unitary operators on the Hilbert space of this system. The advantages of Quantum Computing lie in the aspects of Quantum Mechanics that are peculiar to it, most notably entanglement. Practical ...
Lecture 2: Quantum Math Basics 1 Complex Numbers
Lecture 2: Quantum Math Basics 1 Complex Numbers

... Just as classical 2-bit system, we have four possible computational basis states, namely |00i , |01i , |10i , |11i. We can thus write a general form of the two-qubit state as follows: |ψi = α00 |00i + α01 |01i + α10 |10i + α11 |11i , where the amplitudes satisfy |α00 |2 + · · · + |α00 |2 = 1. For in ...
Universal Quantum Computation with the Exchange Interaction
Universal Quantum Computation with the Exchange Interaction

A Note on Shor`s Quantum Algorithm for Prime Factorization
A Note on Shor`s Quantum Algorithm for Prime Factorization

... shown that this procedure, when applied to a random x(mod n), yields a nontrivial factor of n with probability at least 1 − 1/2k−1 , where k is the number of distinct odd prime factors of n. Refer to [1] for a brief sketch of the proof of this result. One phenomena might be observed that existing p ...
Document
Document

Presentation
Presentation

... Scheme ...
The QT interval on the ECG is measured from the beginning of the
The QT interval on the ECG is measured from the beginning of the

... 註解;需要說明時,我們會使用 Tags 與 Remarks 來表達所做的修訂 ABSTRACT - Condensed Matter Physics The quantum spin Hall state of matter, which is related to the integer quantum Hall state, does not require application of a large magnetic field. It is a state of matter that is proposed to exist in special, twodimensional s ...
Laboratory 1
Laboratory 1

... 1. Plot the window function for the phonon transport  2   at different temperatures. k T ...
Advanced Quantum Physics - Theory of Condensed Matter
Advanced Quantum Physics - Theory of Condensed Matter

ppt
ppt

... S. L. Braunstein, C. M. Caves, and G. J. Milburn, Ann. Phys. 247, 135 (1996). V. Giovannetti, S. Lloyd, and L. Maccone, PRL 96, 041401 (2006). ...
is the “quantum number”
is the “quantum number”

... quantum numbers also result in small energy differences • Pauli exclusion principle: no two electrons in the same atom can be in the same quantum state • Electrons are grouped into shells and subshells • Periodic table reflects shell structure Atoms with the same number of electrons in their outer s ...
Quantum Process Tomography: Theory and Experiment
Quantum Process Tomography: Theory and Experiment

Slides1 - University of Guelph
Slides1 - University of Guelph

... • To understand from basic principles how a quantum information protocol works in theory and in practice using optics • I chose quantum teleportation where we can understand the discrete (polarization) and continuous variable versions of this ...
Fall 2010
Fall 2010

PowerPoint
PowerPoint

... world rely on for transmitting messages securely! Another cryptography-related use of quantum computers is to search lists at high speed. Currently, another cryptographic scheme in use is DES, which relies on keys that, checking possible keys at a rate of one million per second, would take over 1000 ...
Path integral Monte Carlo
Path integral Monte Carlo

... • Possible systems: Lithium clusters/Hydrogen-bonded solids e.g. ice • Coordinate basis/finite temperature for nuclei and ground Born-Oppenheimer state for electronic degrees of freedom ...
Module Guide
Module Guide

... Handouts will usually be available at lectures, but in order to cut down on paper, we will also be posting copies of slides and any other handouts that we produce on the module web site (see below for details). From weeks 9 – 13 the mathematical strand will be delivered during the Monday sessions on ...
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Quantum computing



Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.
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