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Quantum Computers, Factoring, and Decoherence
Quantum Computers, Factoring, and Decoherence

The Computer Science Picture of Reality
The Computer Science Picture of Reality

Quantum Correlations with Metastable Helium Atoms
Quantum Correlations with Metastable Helium Atoms

CHM 421: Physical Chemistry 1 Quantum Mechanics
CHM 421: Physical Chemistry 1 Quantum Mechanics

... There is no prescribed book for this course. I prefer to make my notes after reading different books. There are many excellent books in Quantum Mechanics and you will be well-served by reading one or more of them. However, it is good to be a little cautious while going through any book. There are ma ...
Relation and quantum gravity in the light of Simondon and
Relation and quantum gravity in the light of Simondon and

... Einstein, Heisenberg, Bohr and their colleagues. But also for Descartes, Galileo, Newton and their contemporaries, and for Faraday, Maxwell […]. Today, this manner of posing problems is often regarded as “too philosophical” by many physicists. […] The problem of quantum gravity will not be solved un ...
Presentación de PowerPoint
Presentación de PowerPoint

... "Divergent series are on the whole devil's work, and it is a shame that one dares to found any proof on them. One can get out of them what one wants if one uses them, and it is they which have made so much unhappiness and so many paradoxes. Can one think of anything more appalling than to say that ...
Counting Statistics of Many-Particle Quantum Walks [1] Introduction ======
Counting Statistics of Many-Particle Quantum Walks [1] Introduction ======

... the origin is of order σ = t. By contrast the quantum random walk has variance that scales with σ 2 ∼ t2 , which implies that the expected distance from the origin is of order σ ∼ t. This result can be understood by thinking of Bloch waves in a periodic lattice, in this case the motion of the waves ...
Copenhagen Interpretation (of quantum physics)
Copenhagen Interpretation (of quantum physics)

PPT - LSU Physics & Astronomy
PPT - LSU Physics & Astronomy

Section 4.2 The Quantum Model of the Atom
Section 4.2 The Quantum Model of the Atom

... The present-day model of the atom takes into account both the particle and wave properties of electrons. In this model, electrons are located in orbitals, regions around a nucleus that correspond to specific energy levels. • Orbitals are regions where electrons are likely to be found. • Orbitals are ...
Single Photon Polarization
Single Photon Polarization

... 2. If it is head she decides to encode using a horizontal/verical basis. If it is a tail, she encodes in 45/135 basis. 3. Each bit is encoded as 0 or 1 in the chosen basis. 4. Bob receives each bit and does not know the basis used to encode. He also tosses a coin and decides to decode using the basi ...
All use a quantum level process, either thermal noise or electron
All use a quantum level process, either thermal noise or electron

... Global Consciousness (GC) being a collective phenomenon produced by critical situations, it is ruled by the physics of second-order phase transitions. We retrieve notions such as scale-invariance, universal properties, Weiss domains, power laws and renormalization. Here, the dynamical variables are ...
resonance In the context of chemistry, the term refers to the
resonance In the context of chemistry, the term refers to the

PPT - Louisiana State University
PPT - Louisiana State University

... The expectation value is given by: |A| = N cos  and the variance (A)2 is given by: N(1cos2) ...
Quantum Theory of What - University of Virginia
Quantum Theory of What - University of Virginia

Quantum Physics and Topology - Department of Physics
Quantum Physics and Topology - Department of Physics

Quantum Numbers
Quantum Numbers

... • Excited state: Higher potential energy than ground state. • Photon: A particle of electromagnetic radiation having zero mass and carrying a quantum of energy (i.e., packet of light) • Only certain wavelengths of light are emitted by hydrogen atoms when electric current is passed through—Why? Mulli ...
Hypercomputation - the UNC Department of Computer Science
Hypercomputation - the UNC Department of Computer Science

Document
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... Monte Carlo/CA methods ...
quantum mechanical laws
quantum mechanical laws

... of formal (tensor) products of its component states, plays a central role in quantum information, teleportation and computing. Fermion: Named after Enrico Fermi, fermions are micro particles with half-integer spin and antisymmetric wavefunctions obeying the Fermi-Dirac statistics (no two fermions ca ...
Objective of the course Aim of the course is to introduce the basic
Objective of the course Aim of the course is to introduce the basic

Phase estimation and Shor`s algorithm
Phase estimation and Shor`s algorithm

... Consider the special case where φ = 2πx/2n forvx = Pn−1 i i=0 2 xi , and recall the quantum Fourier transform (QFT). The state which gives the binary representation of x, namely, | xn−1 · · · x0 i (and hence φ) can be obtained by applying the inverse of the QFT , that is by running the network for t ...
Document
Document

Principles of Operation of Semiconductor Quantum Dots
Principles of Operation of Semiconductor Quantum Dots

... 1. A semiconductor quantum dot has many electrons associated with it. Thus one can view a semiconductor quantum dot as a many-particle problem. But by determining a ground state and excited states of one-particle problem and also by determining a ground state of many-particle problem by filling part ...
Document
Document

... Chemistry 130 (Lecture VII-VIII) Answer 1. Which of the following statements is not consistent with a quantum mechanical view of nature? a. Matter can be thought of as waves b. Excited atoms can emit all possible energies c. Knowing the exact speed of an electron means we do not know anything about ...
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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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