Quantum heat engine with multilevel quantum systems
... reach the thermal equilibrium state. Then positive work can be performed when and only when Th ⬎ Tl共⌬h / ⌬l兲 共condition I兲. This result implies a broad validity of the second law and shows by how much Th should be greater than Tl such that the positive work can be extracted. This constraints about t ...
... reach the thermal equilibrium state. Then positive work can be performed when and only when Th ⬎ Tl共⌬h / ⌬l兲 共condition I兲. This result implies a broad validity of the second law and shows by how much Th should be greater than Tl such that the positive work can be extracted. This constraints about t ...
continuous vs discrete processes: the
... transitions from one level to another in accordance with the probabilities of a Markov transition-matrix. Many investigators on the other hand, who are of the opinion that quantum mechanics precludes transitions of this kind having any ontological status, interpret the transitions as measurement-ind ...
... transitions from one level to another in accordance with the probabilities of a Markov transition-matrix. Many investigators on the other hand, who are of the opinion that quantum mechanics precludes transitions of this kind having any ontological status, interpret the transitions as measurement-ind ...
The Status of our Ordinary Three Dimensions in a Quantum Universe 1
... wavefunction’.7 The laws differ in several ways, the most striking of which being that Schrödinger evolution is completely deterministic, while the collapse postulate is an indeterministic law. In other words, given the state of the wavefunction at one time, t 1 , the Schrödinger equation specifie ...
... wavefunction’.7 The laws differ in several ways, the most striking of which being that Schrödinger evolution is completely deterministic, while the collapse postulate is an indeterministic law. In other words, given the state of the wavefunction at one time, t 1 , the Schrödinger equation specifie ...
theoretical study of the interaction of mesoscopic quantum
... gravitational field might be the cause for a collapse of the wave function, cf. [13] and Chap. 8 in [5]. This would signal a breakdown of unitarity at the most fundamental level. There exist experimental proposals for a test of such ideas. For example, the interaction of one photon with a tiny mirro ...
... gravitational field might be the cause for a collapse of the wave function, cf. [13] and Chap. 8 in [5]. This would signal a breakdown of unitarity at the most fundamental level. There exist experimental proposals for a test of such ideas. For example, the interaction of one photon with a tiny mirro ...
Type II InAs/GaAsSb quantum dots: Highly tunable exciton geometry
... GaAsSb QW interface. Under this configuration, the tunneling of the electron through the InAs/GaAs interface determines entirely the exciton ionization and hardly depends on the particular GaAsSb layer thickness (only through small variations of the electron energy due to the strain field). Thus, bo ...
... GaAsSb QW interface. Under this configuration, the tunneling of the electron through the InAs/GaAs interface determines entirely the exciton ionization and hardly depends on the particular GaAsSb layer thickness (only through small variations of the electron energy due to the strain field). Thus, bo ...
BLIND QUANTUM COMPUTATION 1. Introduction and Background
... Although the Quantum Interactive Proof model demonstrated the capabilities of universal blind quantum computation, there wasn’t a clear transition between that model and an actual physical system. This perspective arose from an implementation using Measurement-Based Quantum Computation (MBQC).[BFK09 ...
... Although the Quantum Interactive Proof model demonstrated the capabilities of universal blind quantum computation, there wasn’t a clear transition between that model and an actual physical system. This perspective arose from an implementation using Measurement-Based Quantum Computation (MBQC).[BFK09 ...
Quantum-Secure Message Authentication Codes
... whereas allowing even a single additional query makes the problem easy. The rank method for proving quantum lower bounds overcomes these difficulties and is a general tool that can be used in other quantum security proofs. We note that Velema [Vel13] has since reproved Theorem 1.1 using a generaliz ...
... whereas allowing even a single additional query makes the problem easy. The rank method for proving quantum lower bounds overcomes these difficulties and is a general tool that can be used in other quantum security proofs. We note that Velema [Vel13] has since reproved Theorem 1.1 using a generaliz ...
Physics and Philosophy
... second was a theory of the nature of matter and of the forces that act upon it. The latter had its origins in Max Planck's observation that electromagnetic radiation is emitted in discrete packets, or quanta. In the 1920S this ‘quantum theory' was elaborated into a general quantum mechanics. The aut ...
... second was a theory of the nature of matter and of the forces that act upon it. The latter had its origins in Max Planck's observation that electromagnetic radiation is emitted in discrete packets, or quanta. In the 1920S this ‘quantum theory' was elaborated into a general quantum mechanics. The aut ...
Extremal properties of the variance and the quantum Fisher
... Metrology plays an important role in many areas of physics and engineering. Quantum metrology [1,2] is a novel development, which takes into account the quantum nature of matter when determining the achievable maximal accuracy in parameter estimation. For instance, quantum metrology shows that it is ...
... Metrology plays an important role in many areas of physics and engineering. Quantum metrology [1,2] is a novel development, which takes into account the quantum nature of matter when determining the achievable maximal accuracy in parameter estimation. For instance, quantum metrology shows that it is ...
Quantum Programming Languages: Survey and Bibliography
... lead to the simulation of a classical Turing machine, but does not consider quantum computation; Albert (1983) defines a form of quantum automata, which computes with quantum states but is not programmable. Yao (1993) studies the properties of the universal QTM further, and Bernstein & Vazirani (199 ...
... lead to the simulation of a classical Turing machine, but does not consider quantum computation; Albert (1983) defines a form of quantum automata, which computes with quantum states but is not programmable. Yao (1993) studies the properties of the universal QTM further, and Bernstein & Vazirani (199 ...
