r2 - SIUE
... these overlap and we observe a particle in the overlap area, as it were, then we cannot tell which of the two electrons we have observed. In short, the two electrons are not only identical, but also in principle indistinguishable: there is no experiment by which we can tell which is which. This fac ...
... these overlap and we observe a particle in the overlap area, as it were, then we cannot tell which of the two electrons we have observed. In short, the two electrons are not only identical, but also in principle indistinguishable: there is no experiment by which we can tell which is which. This fac ...
Evolution without evolution: Dynamics described by stationary
... density matrices which commute with the conserved quantity, if the density matrix of the cornposite system commutes with that quantity. Nevertheless, if the conserved quantity is coherently shared between subsystems, the state of one subsystem relative to a particular state of another can show inte ...
... density matrices which commute with the conserved quantity, if the density matrix of the cornposite system commutes with that quantity. Nevertheless, if the conserved quantity is coherently shared between subsystems, the state of one subsystem relative to a particular state of another can show inte ...
A Note on the Quantum Mechanical Time Reversal - Philsci
... I note firstly that the problem has a longer history than Callender [1] appears to be aware of, and has previously been discussed in some detail by O. Costa de Beauregard [11] in the relativistic context. The viability of the T-operator appears to have been first advanced by Racah [12]. de Beauregar ...
... I note firstly that the problem has a longer history than Callender [1] appears to be aware of, and has previously been discussed in some detail by O. Costa de Beauregard [11] in the relativistic context. The viability of the T-operator appears to have been first advanced by Racah [12]. de Beauregar ...
Environment-assisted quantum control of a solid
... converted to that in Faraday configuration via the optical Stark effect, the prohibitively large laser power required to achieve this renders the scheme impractical. We instead consider the smallest effective field we can devise: that due to the local fluctuating nuclear spins within the QD. They gi ...
... converted to that in Faraday configuration via the optical Stark effect, the prohibitively large laser power required to achieve this renders the scheme impractical. We instead consider the smallest effective field we can devise: that due to the local fluctuating nuclear spins within the QD. They gi ...
Get PDF - OSA Publishing
... regimes, and a fairly good interpolation across the quantum phase transition. Our variational ansatz, however, fails to describe long range properties of the superfluid phase, such as the algebraic decay with distance of the off-diagonal elements of the one-particle density matrix. The simplicity of ...
... regimes, and a fairly good interpolation across the quantum phase transition. Our variational ansatz, however, fails to describe long range properties of the superfluid phase, such as the algebraic decay with distance of the off-diagonal elements of the one-particle density matrix. The simplicity of ...
Sixth lecture, 11.11.03 (BECs, lasers, superselection rules and
... • A field (ae-iwt + h.c.) is a + a or a – a... like X and P. To measure this operator, one needs to put it inside a von Neumann Hamiltonian. But it doesn't obey conservation of number (or energy)! • Fields and phases are always measured by beating against another oscillator which already has a pha ...
... • A field (ae-iwt + h.c.) is a + a or a – a... like X and P. To measure this operator, one needs to put it inside a von Neumann Hamiltonian. But it doesn't obey conservation of number (or energy)! • Fields and phases are always measured by beating against another oscillator which already has a pha ...
Aalborg Universitet Beyond the Modern Physics and Cosmological Equations
... analyzed. This review can be a step to combine general relativity and quantum mechanics. Zero-point energy, also called quantum vacuum zero-point energy, is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical sys ...
... analyzed. This review can be a step to combine general relativity and quantum mechanics. Zero-point energy, also called quantum vacuum zero-point energy, is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical sys ...
Quantum Computation with Topological Phases of Matter
... symmetry breaking phase transitions which applies to phases with topological excitations described by quantum groups or modular tensor categories. This enables us to deal with phases whose quasiparticles have non-integer quantum dimensions and obey braid statistics. Many examples of such phases can ...
... symmetry breaking phase transitions which applies to phases with topological excitations described by quantum groups or modular tensor categories. This enables us to deal with phases whose quasiparticles have non-integer quantum dimensions and obey braid statistics. Many examples of such phases can ...
Projective Measurements
... distinguish non-orthogonal states unambiguously. This is another explanation why non-orthogonal states can not be copied as was stated earlier, because of lack of exact information about such states we can not build a quantum circuit to produce them. ...
... distinguish non-orthogonal states unambiguously. This is another explanation why non-orthogonal states can not be copied as was stated earlier, because of lack of exact information about such states we can not build a quantum circuit to produce them. ...
A high-speed tunable beam splitter for feed
... independent and conserves coherence. Therefore, a high-speed, polarization-independent, tunable beam splitter for photonic quantum information processing is highly desirable. In classical photonics, although fast optical modulators based on electro-optical materials embedded in Mach-Zehnder interfe ...
... independent and conserves coherence. Therefore, a high-speed, polarization-independent, tunable beam splitter for photonic quantum information processing is highly desirable. In classical photonics, although fast optical modulators based on electro-optical materials embedded in Mach-Zehnder interfe ...
Quantum Interaction Approach in Cognition, Artificial Intelligence
... been named Quantum Cognition [6]. It is interesting, in our opinion, to dwell upon the main results obtained by the scholars involved in this Quantum Interaction Approach. We stress, however, that the following presentation does not pretend to be either historically complete or exhaustive of the var ...
... been named Quantum Cognition [6]. It is interesting, in our opinion, to dwell upon the main results obtained by the scholars involved in this Quantum Interaction Approach. We stress, however, that the following presentation does not pretend to be either historically complete or exhaustive of the var ...
Optimal quantum cloning of orbital angular momentum photon
... guishable. If the two photons are made distinguishable by their internal quantum state, for example encoded in the polarization π or in other degrees of freedom, the coalescence effect vanishes. Now, if one of the two photons involved in the process is in a given input state to be cloned and the othe ...
... guishable. If the two photons are made distinguishable by their internal quantum state, for example encoded in the polarization π or in other degrees of freedom, the coalescence effect vanishes. Now, if one of the two photons involved in the process is in a given input state to be cloned and the othe ...
Gentzen-Like Methods in Quantum Logic*
... In that work, he proposed to regard projection operators over a given Hilbert space to represent certain propositions of a corresponding quantum-mechanical system. Later on, in a joint paper with Garrett Birkhoff, this “logic of projection operators” has been given a more elaborated treatment, chara ...
... In that work, he proposed to regard projection operators over a given Hilbert space to represent certain propositions of a corresponding quantum-mechanical system. Later on, in a joint paper with Garrett Birkhoff, this “logic of projection operators” has been given a more elaborated treatment, chara ...