Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits M. D. Shulman
... Quantum computers have the potential to solve certain interesting problems significantly faster than classical computers. To exploit the power of a quantum computation it is necessary to perform interqubit operations and generate entangled states. Spin qubits are a promising candidate for implementi ...
... Quantum computers have the potential to solve certain interesting problems significantly faster than classical computers. To exploit the power of a quantum computation it is necessary to perform interqubit operations and generate entangled states. Spin qubits are a promising candidate for implementi ...
Template
... The first step of the numerical scheme is the solution of the ten-band k·p Hamiltonian which includes the dilute nitrogen levels responsible for the extra nonparabolicity that gives rise to strong differences in effective subband masses. The Green’s functions and self-energies are expanded using ei ...
... The first step of the numerical scheme is the solution of the ten-band k·p Hamiltonian which includes the dilute nitrogen levels responsible for the extra nonparabolicity that gives rise to strong differences in effective subband masses. The Green’s functions and self-energies are expanded using ei ...
Design of Reversible Logic based Basic Combinational Circuits
... circuits are constructed using irreversible logic. According to Landauers principle, the loss of one bit of information lost, will dissipate kT*ln (2) joules of energy where, k is the Boltzmanns constant and k=1.38x10 -23 J/K, T is the absolute temperature in Kelvin [1]. The basic combinational circ ...
... circuits are constructed using irreversible logic. According to Landauers principle, the loss of one bit of information lost, will dissipate kT*ln (2) joules of energy where, k is the Boltzmanns constant and k=1.38x10 -23 J/K, T is the absolute temperature in Kelvin [1]. The basic combinational circ ...
Coherent manipulations of charge-number states in a Cooper-pair box Y. Nakamura,
... quantum-scale signal. However, we would like to point out a possible application of this type of readout in quantum computing. In the quantum error-correction scheme [30–32], although we need many ancilla qubits prepared in |0 state and many readouts of those qubits, the signals of the readout are ...
... quantum-scale signal. However, we would like to point out a possible application of this type of readout in quantum computing. In the quantum error-correction scheme [30–32], although we need many ancilla qubits prepared in |0 state and many readouts of those qubits, the signals of the readout are ...
How Quantum Theory Helps us Explain - u.arizona.edu
... they must face Bell’s objection that, unless reformulated as a precise theory about beables, quantum theory is merely a blunt instrument for predicting statistics of measurement results obtained in ill-defined circumstances that is consequently unable to explain anything that happens outside the lab ...
... they must face Bell’s objection that, unless reformulated as a precise theory about beables, quantum theory is merely a blunt instrument for predicting statistics of measurement results obtained in ill-defined circumstances that is consequently unable to explain anything that happens outside the lab ...
Quantum Process on 1 quabit system Au Tung Kin 2009264740 1
... of electrons is uncertain, that is, we may have nonzero probability to get spin up or spin down after measurement. Thus, the state of an electron is more complicated rather than either spin up or down. Since the measurement outcomes are only two, it is “one qubit” system. In mathematics, we use vect ...
... of electrons is uncertain, that is, we may have nonzero probability to get spin up or spin down after measurement. Thus, the state of an electron is more complicated rather than either spin up or down. Since the measurement outcomes are only two, it is “one qubit” system. In mathematics, we use vect ...
Fractional @ Scaling for Quantum Kicked Rotors without Cantori
... of momentum distributions with L @0:75 , i.e., characterized by one of the classical golden-ratio exponents, and in phase-space regions corresponding quite closely to those of [6]. It was argued that this too was evidence of the quantum signature of the golden cantori. As the 2-DKP has already be ...
... of momentum distributions with L @0:75 , i.e., characterized by one of the classical golden-ratio exponents, and in phase-space regions corresponding quite closely to those of [6]. It was argued that this too was evidence of the quantum signature of the golden cantori. As the 2-DKP has already be ...
Investigating incompatibility: How to reconcile complementarity with EPR C
... tably (and even trivially) conflict with EPR. However, if these two concepts can be shown to be incompatible only some of the time instead, the conflict between Complementarity and EPR is no longer inevitable. Momentum and position will not then be incompatible all the time, but only during certain ...
... tably (and even trivially) conflict with EPR. However, if these two concepts can be shown to be incompatible only some of the time instead, the conflict between Complementarity and EPR is no longer inevitable. Momentum and position will not then be incompatible all the time, but only during certain ...
Direct Characterization of Quantum Dynamics: General Theory
... dynamics of arbitrary quantum systems using QED. And, providing the answer is affirmative, how the physical resources scale with system size. Moreover, one would like to understand whether entanglement plays a fundamental role, and what potential applications emerge from such a theory linking QPT an ...
... dynamics of arbitrary quantum systems using QED. And, providing the answer is affirmative, how the physical resources scale with system size. Moreover, one would like to understand whether entanglement plays a fundamental role, and what potential applications emerge from such a theory linking QPT an ...
On quantum obfuscation - University of Maryland Institute for
... 1. functional equivalence: the input/output functionality of the input program does not change; 2. polynomial slowdown: if the input program is efficient, then the output program is efficient; 3. obfuscation: the code of the output program is “hard to understand.” The last condition can be formulate ...
... 1. functional equivalence: the input/output functionality of the input program does not change; 2. polynomial slowdown: if the input program is efficient, then the output program is efficient; 3. obfuscation: the code of the output program is “hard to understand.” The last condition can be formulate ...
History of Quantum Mechanics or the Comedy of Errors
... There are many examples at a macroscopic level that would raise a similar dilemma and where one would side with Einstein in making assumptions, even very unnatural ones, that would preserve locality. Suppose that two people are located far apart, and each tosses coins with results that are always e ...
... There are many examples at a macroscopic level that would raise a similar dilemma and where one would side with Einstein in making assumptions, even very unnatural ones, that would preserve locality. Suppose that two people are located far apart, and each tosses coins with results that are always e ...
History of Quantum Mechanics or the Comedy of Errors1 Jean
... There are many examples at a macroscopic level that would raise a similar dilemma and where one would side with Einstein in making assumptions, even very unnatural ones, that would preserve locality. Suppose that two people are located far apart, and each tosses coins with results that are always e ...
... There are many examples at a macroscopic level that would raise a similar dilemma and where one would side with Einstein in making assumptions, even very unnatural ones, that would preserve locality. Suppose that two people are located far apart, and each tosses coins with results that are always e ...
arXiv:gr-qc/9901024 v1 8 Jan 1999 - Philsci
... The discovery of a satisfactory quantum theory of gravity has been widely regarded as the Holy Grail of theoretical physics for some forty years. In this essay, we will discuss a philosophical aspect of the search for such a theory that bears on our understanding of time: namely, the senses in which ...
... The discovery of a satisfactory quantum theory of gravity has been widely regarded as the Holy Grail of theoretical physics for some forty years. In this essay, we will discuss a philosophical aspect of the search for such a theory that bears on our understanding of time: namely, the senses in which ...
Physlets and Open Source Physics for Quantum Mechanics:
... Physlets and newly created Open Source Physics applets and applications to make the teaching of quantum mechanics visual and interactive. These exercises and tools address both quantitative and conceptual difficulties experienced by many students. Because the materials are Web based, they are extrem ...
... Physlets and newly created Open Source Physics applets and applications to make the teaching of quantum mechanics visual and interactive. These exercises and tools address both quantitative and conceptual difficulties experienced by many students. Because the materials are Web based, they are extrem ...
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.