Observational Probabilities in Quantum Cosmology
... In local quantum field theory with a definite globally hyperbolic spacetime, any nonnegative localized operator (such as a localized projection operator) will have a strictly positive expectation value in any nonpathological quantum state. Therefore, if such a nonnegative localized operator is integ ...
... In local quantum field theory with a definite globally hyperbolic spacetime, any nonnegative localized operator (such as a localized projection operator) will have a strictly positive expectation value in any nonpathological quantum state. Therefore, if such a nonnegative localized operator is integ ...
Some trends in the philosophy of physics - Philsci
... more mistaken to think that philosophical belief in general are to be substituted with well-established science when the time is ripe. As will be illustrated in this section, philosophical considerations are necessarily part of the physics enterprise. A simple argument can be given for this point. ...
... more mistaken to think that philosophical belief in general are to be substituted with well-established science when the time is ripe. As will be illustrated in this section, philosophical considerations are necessarily part of the physics enterprise. A simple argument can be given for this point. ...
Phys.Rev.Lett. 84, 1
... quantum mechanics, distinguishes the world of quantum phenomena from the realm of classical physics. Quantum mechanically, one can never expect to measure both precise position and momentum of a quantum at the same time. It is prohibited. We say that the quantum observables “position” and “momentum” ...
... quantum mechanics, distinguishes the world of quantum phenomena from the realm of classical physics. Quantum mechanically, one can never expect to measure both precise position and momentum of a quantum at the same time. It is prohibited. We say that the quantum observables “position” and “momentum” ...
Quantum Computing With Closed Timelike Curves
... computed in the physical world (PSPACE)! (2) CTCs don’t exist, and this sort of result helps pinpoint what’s so ridiculous about them (3) CTCs don’t exist, and we already knew they were ridiculous—but at least we can find fixed points of superoperators in PSPACE! Our result formally justifies the fo ...
... computed in the physical world (PSPACE)! (2) CTCs don’t exist, and this sort of result helps pinpoint what’s so ridiculous about them (3) CTCs don’t exist, and we already knew they were ridiculous—but at least we can find fixed points of superoperators in PSPACE! Our result formally justifies the fo ...
Adiabatic Quantum Computation is Equivalent to Standard Quantum Computation Dorit Aharonov
... Quantum computation has emerged in the last decade as an exciting and promising direction of research due to several breakthrough discoveries. Shor’s quantum algorithm for factorization [1], followed by several other algorithms to solve algebraic and combinatorial problems (see, e.g., [2–5]) have de ...
... Quantum computation has emerged in the last decade as an exciting and promising direction of research due to several breakthrough discoveries. Shor’s quantum algorithm for factorization [1], followed by several other algorithms to solve algebraic and combinatorial problems (see, e.g., [2–5]) have de ...
Axiomatic description of mixed states from Selinger`s CPM
... play a crucial role in quantum information theory. To our knowledge, the need for an abstract notion of internal trace has so far only been indicated by Delbecque in [5], motivated by the fact that while in Selinger’s construction they arise from an underlying JSV-trace in some other categories they ...
... play a crucial role in quantum information theory. To our knowledge, the need for an abstract notion of internal trace has so far only been indicated by Delbecque in [5], motivated by the fact that while in Selinger’s construction they arise from an underlying JSV-trace in some other categories they ...
Dissipative tunneling - Physik Uni
... The rate of escape of a metastable state is studied in a temperature regime where quantum tunneling acts as the rate limiting process. The particle is coupled to a heat bath so that it can dissipate energy in tunneling across an obstructing barrier. This objective then gives the generalization of th ...
... The rate of escape of a metastable state is studied in a temperature regime where quantum tunneling acts as the rate limiting process. The particle is coupled to a heat bath so that it can dissipate energy in tunneling across an obstructing barrier. This objective then gives the generalization of th ...
The classical electromagnetism as used nowadays is not the theory
... theory and not much is said about the relation between quantum electrodynamics and classical electrodynamics. Be it the relativistic or non-relativistic theory, we are in the paradoxical situation, which is usually present as non-paradoxical and natural, that the quantum theory is supposed to contai ...
... theory and not much is said about the relation between quantum electrodynamics and classical electrodynamics. Be it the relativistic or non-relativistic theory, we are in the paradoxical situation, which is usually present as non-paradoxical and natural, that the quantum theory is supposed to contai ...
Quantum Channel Construction with Circuit Quantum
... an explicit binary tree construction has been provided to implement any given POVM. To achieve ultimate control of open quantum systems, it is crucial to extend the construction to general CPTP maps. In this paper, we concretize the idea developed in [23, 25] and propose a general protocol for imple ...
... an explicit binary tree construction has been provided to implement any given POVM. To achieve ultimate control of open quantum systems, it is crucial to extend the construction to general CPTP maps. In this paper, we concretize the idea developed in [23, 25] and propose a general protocol for imple ...
