Analysis of a Quantum Error Correcting Code using Quantum
... Quantum process calculus is a generic term for a class of formal languages with which to describe and analyze the behaviour of systems that combine quantum and classical computation and communication. Quantum process calculi have been developed as part of a programme to transfer ideas from the field ...
... Quantum process calculus is a generic term for a class of formal languages with which to describe and analyze the behaviour of systems that combine quantum and classical computation and communication. Quantum process calculi have been developed as part of a programme to transfer ideas from the field ...
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... Patel [TGP05]. Let us describe their results in the setting of the database search problem, where, given a database f : [N ] → {0, 1}, we are asked to determine an x ∈ f −1 (1). If |f −1 (0)| = N , then choosing x uniformly at random will meet the requirements with probability at least 1 − . This ...
... Patel [TGP05]. Let us describe their results in the setting of the database search problem, where, given a database f : [N ] → {0, 1}, we are asked to determine an x ∈ f −1 (1). If |f −1 (0)| = N , then choosing x uniformly at random will meet the requirements with probability at least 1 − . This ...
spin liquids - IPhT
... Gapped excitations in the bulk (abelian anyons) but ∃ gapless edge modes Several realizations were recently discovered (thanks to 2D DMRG in particular) on Kagome-lattice Heisenberg models (with or without explicit T-reversal sym. breaking) ...
... Gapped excitations in the bulk (abelian anyons) but ∃ gapless edge modes Several realizations were recently discovered (thanks to 2D DMRG in particular) on Kagome-lattice Heisenberg models (with or without explicit T-reversal sym. breaking) ...
AAAI Proceedings Template
... with zeros everywhere, except that it has 1.0 located at the row corresponding to index j. Positive indices, j > 0, represent a state of evidence favoring target present; negative indices, j < 0, represent a state of evidence for target absent, and zero represents a neutral state of evidence. The nu ...
... with zeros everywhere, except that it has 1.0 located at the row corresponding to index j. Positive indices, j > 0, represent a state of evidence favoring target present; negative indices, j < 0, represent a state of evidence for target absent, and zero represents a neutral state of evidence. The nu ...
2014-15 Archived Abstracts
... and transport properties do not fit into the unified phenomenology with which we understand conventional metals the Landau Fermi liquid (FL) theory characterized by a low temperature limiting Tlinear specific heat and a T^2 resistivity. Studying the evolution of the T¬ dependence of these obser ...
... and transport properties do not fit into the unified phenomenology with which we understand conventional metals the Landau Fermi liquid (FL) theory characterized by a low temperature limiting Tlinear specific heat and a T^2 resistivity. Studying the evolution of the T¬ dependence of these obser ...
View PDF - The Institute of Optics
... are based on the fundamental laws of quantum mechanics.1–5 Our group has been particularly interested in developing a free-space system for quantum key distribution (QKD) based on the use of Laguerre-Gauss (LG) modes and other field modes that carry orbital angular momentum (OAM).6–9 The motivation f ...
... are based on the fundamental laws of quantum mechanics.1–5 Our group has been particularly interested in developing a free-space system for quantum key distribution (QKD) based on the use of Laguerre-Gauss (LG) modes and other field modes that carry orbital angular momentum (OAM).6–9 The motivation f ...
Classical Physics versus Quantum Physics: An Overview
... objects lies an exotic shadow world of potentiality and uncertainty. This world, as we will see, defiessimple description since its foundations are so different from our everyday experience. The transition from the microworldto the macroworld, i.e., how the macro world emerges from the microcworld, ...
... objects lies an exotic shadow world of potentiality and uncertainty. This world, as we will see, defiessimple description since its foundations are so different from our everyday experience. The transition from the microworldto the macroworld, i.e., how the macro world emerges from the microcworld, ...
Introduction to Quantum Computation
... values corresponds to the binary representation of a number just like the more familiar decimal representation. The advantage of using the binary representation in a computer is that, it is relatively easy to construct devices that possess two clearly distinguishable states that may be used to repre ...
... values corresponds to the binary representation of a number just like the more familiar decimal representation. The advantage of using the binary representation in a computer is that, it is relatively easy to construct devices that possess two clearly distinguishable states that may be used to repre ...
Thermal effects on sudden changes and freezing
... to study the phenomena of sudden transition and freezing of the correlations for more general (realistic) dissipation models, such as our system under the MME approach. Recently, Pinto et al. in [12] discussed the sensitivity of the sudden change of the QD to different initial conditions. In this co ...
... to study the phenomena of sudden transition and freezing of the correlations for more general (realistic) dissipation models, such as our system under the MME approach. Recently, Pinto et al. in [12] discussed the sensitivity of the sudden change of the QD to different initial conditions. In this co ...
Properties, Statistics and the Identity of Quantum Particles
... For example, a system with n indiscernible fermions has n times the unit mass • (Compare with the Leibniz vs. Newton dispute on the nature of space (and time)) • Primitive identities need not be ‘mysterious metaphysics’ ...
... For example, a system with n indiscernible fermions has n times the unit mass • (Compare with the Leibniz vs. Newton dispute on the nature of space (and time)) • Primitive identities need not be ‘mysterious metaphysics’ ...
CSE 599d - Quantum Computing Mixed Quantum States and Open
... our information processing machines, that there were these equally valid probabilistic machines that had their own equally valid formulation. Is there a way to include the latter within the confines of the former and in particular to mix quantum descriptions with classical descriptions? This leads u ...
... our information processing machines, that there were these equally valid probabilistic machines that had their own equally valid formulation. Is there a way to include the latter within the confines of the former and in particular to mix quantum descriptions with classical descriptions? This leads u ...
Matter–wave interference of particles selected from a molecular
... interferes only with itself. We only have to make sure that every molecule contributes to the final pattern in a similar way, which is true for all members of the library with about the same mass, independent of their internal state. Differences between various molecules, such as their isotopic distr ...
... interferes only with itself. We only have to make sure that every molecule contributes to the final pattern in a similar way, which is true for all members of the library with about the same mass, independent of their internal state. Differences between various molecules, such as their isotopic distr ...
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... picture holds in which A’s and B’s qubits are coupled by an intervening chain of qubits A1 B1 A2 B2 . . . An Bn , where A has access to A1 and B has access to Bn . Here, quantum information can be sent along the chain by swapping Ai with Bi over a time t=2, then swapping Bi with Ai 1 , and repeatin ...
... picture holds in which A’s and B’s qubits are coupled by an intervening chain of qubits A1 B1 A2 B2 . . . An Bn , where A has access to A1 and B has access to Bn . Here, quantum information can be sent along the chain by swapping Ai with Bi over a time t=2, then swapping Bi with Ai 1 , and repeatin ...
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.