Quantum information with gaussian states
WebIndeed, the QCS is proportional to the decoherence rate of the state so that the resulting states are considerably more prone to environmental decoherence. Our results are … WebWe show how to exploit a variational ansatz based on non-Gaussian wavefunctions for fast non-adiabatic preparation of quantum many-body states using quantum optimal control. We demonstrate this on the example of spin-boson model, where we determine the optimal time variation of the Hamiltonian parameters to prepare (near) critical ground states in times, …
Quantum information with gaussian states
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WebAug 1, 2007 · The quantum Gaussian states play a central role in such a case. We review the properties and applications of Gaussian states in quantum information with emphasis on … WebThe time evolution of the Wigner function for Gaussian states generated by Lindblad quantum dynamics is investigated in the semiclassical limit. A new type of phase-space …
Web2 days ago · An important protocol in quantum networks and cryptography, quantum state sharing works like this (in simple terms): a secret quantum state is divided into n shares and given to n players. The secret state can only be reconstructed if k (where k > n /2) players cooperate, while the remaining n - k players cannot access the information. WebThe time evolution of the Wigner function for Gaussian states generated by Lindblad quantum dynamics is investigated in the semiclassical limit. A new type of phase-space dynamics is obtained for the centre of a Gaussian Wigner function, where the Lindblad terms ge
WebApr 14, 2024 · In this paper, we investigate the electronic and optical properties of an electron in both symmetric and asymmetric double quantum wells that consist of a harmonic potential with an internal Gaussian barrier under a nonresonant intense laser field. The electronic structure was obtained by using the two-dimensional diagonalization … WebApr 12, 2024 · that the quantum state spaces with a predesignated azimuthal angle have the same geometry. Hence, we draw the conclu-sion that the appropriate quantum state space (i.e., quantum phase space) corresponding to the Nqubits (under considera-tion) is a two-parametric and curved manifold, it is identified by the following metric tensor dS2 = N 4 d …
WebFor more details and further information on continuous-variable quantum computation and Gaussian quantum information, please see . 1. Joonsuk Huh, Gian Giacomo Guerreschi, …
WebApr 14, 2024 · Round 1. Reviewer 1 Report . This article is practically a copy of a large series of articles of the same authors. In all these articles the authors use formulas for nonlinear … drew jardine new orleansWebWe show how to exploit a variational ansatz based on non-Gaussian wavefunctions for fast non-adiabatic preparation of quantum many-body states using quantum optimal control. … drew james hollywoodWebthe quantum phase space of continuous variable systems. In that context, a quantum state is calledGaussianif its Husimi-Q function is a Gaussian function of the coherent state … drew jacobs missing and wishing lyricsWebJan 30, 2008 · The quantum Gaussian states play a central role in such a case. We review the properties and applications of Gaussian states in quantum information with emphasis … drew james hollywood flWebAug 1, 2007 · The quantum Gaussian states play a central role in such a case. We review the properties and applications of Gaussian states in quantum information with emphasis on … drew jacobs country singerWebIn this paper, we provide a brief, and hopefully didactic, exposition of Gaussian state quantum information and its contemporary uses, including sometimes omitted crucial … drew johnson aerisWebDec 22, 2009 · It has recently become apparent, however, that the use of non-Gaussian states and operations is not only advantageous but at times necessary to successfully perform quantum information tasks. Non-Gaussian operations are required for entanglement distillation or swapping (4–8), and their use along with non-Gaussian states … drew james salon hollywood