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Quantum Harmonic Analysis of the Density Matrix
作者：Maurice A. de Gosson
来源：[J].Quanta, 2018, Vol.7 (1), pp.74-110Quanta
摘要：We will study rigorously the notion of mixed states and their density matrices. We will also discuss the quantum-mechanical consequences of possible variations of Planck's constant h. This review has been written having in mind two readerships: mathematical physicists and qu...
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    John Bell and the Great Enterprise
    作者：Anthony Sudbery
    来源：[J].Quanta, 2018, Vol.7 (1), pp.68-73Quanta
    摘要：I outline Bell's vision of the "great enterprise" of science, and his view that conventional teachings about quantum mechanics constituted a betrayal of this enterprise. I describe a proposal of his to put the theory on a more satisfactory footing, and review the subsequent ...
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      An Invitation to Quantum Channels
      作者：Vinayak Jagadish , Francesco Petruccione
      来源：[J].Quanta, 2018, Vol.7 (1), pp.54-67Quanta
      摘要：Open quantum systems have become an active area of research, owing to its potential applications in many different fields ranging from computation to biology. Here, we review the formalism of dynamical maps used to represent the time evolution of open quantum systems and dis...
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        Quantum Mechanics and Global Determinism
        作者：Emily Christine Adlam
        来源：[J].Quanta, 2018, Vol.7 (1), pp.40-53Quanta
        摘要：It is proposed that certain features of quantum mechanics may be perspectival effects, which arise because experiments performed on locally accessible variables can only uncover a certain subset of the correlations exhibited by an underlying deterministic theory. This hypoth...
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          On Schmidt Decomposition: Approach Based on Correlation Operator as Bipartite Entanglement Entity
          作者：Fedor Herbut
          来源：[J].Quanta, 2018, Vol.7 (1), pp.19-39Quanta
          摘要：An elaborated review with proofs of Schmidt canonical decomposition of any bipartite state vector is approached through general subsystem basis expansion. The upgraded forms of Schmidt decomposition in terms of correlation operator and twin observables are presented in detai...
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            A Quantum Implementation Model for Artificial Neural Networks
            作者：Ammar Daskin
            来源：[J].Quanta, 2018, Vol.7 (1), pp.7-18Quanta
            摘要：The learning process for multilayered neural networks with many nodes makes heavy demands on computational resources. In some neural network models, the learning formulas, such as the Widrow–Hoff formula, do not change the eigenvectors of the weight matrix while flatting the...
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              Biphoton Interference in a Double-Slit Experiment
              作者：Ananya Paul , Tabish Qureshi
              来源：[J].Quanta, 2018, Vol.7 (1), pp.1-6Quanta
              摘要：A double-slit experiment with entangled photons is theoretically analyzed. It is shown that, under suitable conditions, two entangled photons of wavelength λ can behave like a biphoton of wavelength λ/2. The interference of these biphotons, passing through a double-slit can ...
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                Is Schrödinger's Cat Alive?
                作者：Mani L. Bhaumik
                来源：[J].Quanta, 2017, Vol.6 (1), pp.70-80Quanta
                摘要：Erwin Schrödinger is famous for presenting his wave equation of motion that jump-started quantum mechanics. His disenchantment with the Copenhagen interpretation of quantum mechanics led him to unveil the Schrödinger's cat paradox, which did not get much attention for nearly...
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                  Hanbury Brown–Twiss Effect with Wave Packets
                  作者：Tabish Qureshi , Ushba Rizwan
                  来源：[J].Quanta, 2017, Vol.6 (1), pp.61-69Quanta
                  摘要：The Hanbury Brown–Twiss (HBT) effect, at the quantum level, is essentially an interference of one particle with another, as opposed to interference of a particle with itself. Conventional treatments of identical particles encounter difficulties while dealing with entanglemen...
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                    Schrödinger's Cat: Where Does The Entanglement Come From?
                    作者：Radu Ionicioiu
                    来源：[J].Quanta, 2017, Vol.6 (1), pp.57-60Quanta
                    摘要：Schrödinger's cat is one of the most striking paradoxes of quantum mechanics that reveals the counterintuitive aspects of the microscopic world. Here, I discuss the paradox in the framework of quantum information. Using a quantum networks formalism, I analyse the information...
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