منابع مشابه
Quantum synchronization
Using the methods of quantum trajectories we study numerically the phenomenon of quantum synchronization in a quantum dissipative system with periodic driving. Our results show that at small values of Planck constant ~ the classical devil’s staircase remains robust with respect to quantum fluctuations while at large ~ values synchronization plateaus are destroyed. Quantum synchronization in our...
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We study, within the spin-boson dynamics, the synchronization of a quantum tunneling system with an external, time-periodic driving signal. As a main result, we find that at a sufficiently large system-bath coupling strength (i.e., for a friction strength alpha > 1) the thermal noise plays a constructive role in yielding forced synchronization. This noise-induced synchronization can occur when ...
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F. A. Cárdenas-López,1, 2, ∗ M. Sanz,3, † J. C. Retamal,1, 2 and E. Solano3, 4 Departamento de Fı́sica, Universidad de Santiago de Chile (USACH), Avenida Ecuador 3493, 9170124, Santiago, Chile Center for the Development of Nanoscience and Nanotechnology 9170124, Estación Central, Santiago, Chile Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilba...
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Feynman’s model of a quantum computer provides an example of a continuous-time quantum walk. Its clocking mechanism is an excitation of a basically linear chain of spins with occasional controlled jumps which allow for motion on a planar graph. The spreading of the wave packet poses limitations on the probability of ever completing the s elementary steps of a computation: an additional amount o...
متن کاملQuantum correlations and mutual synchronization
We consider the phenomenon of mutual synchronization in a fundamental quantum system of two detuned quantum harmonic oscillators dissipating into the environment. We identify the conditions leading to this spontaneous phenomenon, showing that the ability of the system to synchronize is related to the existence of disparate decay rates and is accompanied by robust quantum discord and mutual info...
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ژورنال
عنوان ژورنال: The European Physical Journal D
سال: 2006
ISSN: 1434-6060,1434-6079
DOI: 10.1140/epjd/e2006-00011-9