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The double Caldeira–Leggett model: Derivation and solutions of the master equations, reservoir-induced interactions and decoherence

Cacheffo, A.; Moussa, M.H.Y.; de Ponte, M.A. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 11, pp. 2198-2217

reservoir. After deriving and solving the master equation for each case, we analyze the decoherence process of particular … entanglements in the positional space of both oscillators. To analyze the decoherence mechanism we have derived a general decay …-induced interaction, which gives rise to interesting collective damping effects, such as the emergence of relaxation- and decoherence …

Persistent link: https://www.econbiz.de/10010873085

Environment-induced decoherence II. Effect of decoherence on Bell's inequality for an EPR pair

Venugopalan, A; Kumar, Deepak; Ghosh, R - In: Physica A: Statistical Mechanics and its Applications 220 (1995) 3, pp. 576-584

According to Bell's theorem, the degree of correlation between spatially separated measurements on a quantum system is limited by certain inequalities if one assumes the condition of locality. Quantum mechanics predicts that this limit can be exceeded, making it nonlocal. We analyse the effect...

Persistent link: https://www.econbiz.de/10010873104

Pairing entangled states

Zhou, Zheng Wei; Guo, Guang Can - In: Physica A: Statistical Mechanics and its Applications 275 (2000) 3, pp. 475-482

entangled states can effctively avoid the decoherence influence from the environment and realize the long time storage of …

Persistent link: https://www.econbiz.de/10010874253

Decay rate and decoherence control in coupled dissipative cavities

Bosco de Magalhães, A.R.; Mokarzel, S.G.; Nemes, M.C.; … - In: Physica A: Statistical Mechanics and its Applications 341 (2004) C, pp. 234-250

coupled through a wire. Moreover, we show that also decoherence rates can be substantially altered by manipulation of physical …

Persistent link: https://www.econbiz.de/10010871676

Environment-induced decoherence I. The Stern-Gerlach measurement

Venugopalan, A; Kumar, Deepak; Ghosh, R - In: Physica A: Statistical Mechanics and its Applications 220 (1995) 3, pp. 563-575

manner. The dissipative interaction leads to decoherence in the superposition states of the apparatus, making its behaviour …

Persistent link: https://www.econbiz.de/10010871949

Decoherence strength of multiple non-Markovian environments

Fleming, C.H.; Hu, B.L.; Roura, Albert - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 17, pp. 4206-4214

It is known that one can characterize the decoherence strength of a Markovian environment by the product of its … temperature and induced damping, and order the decoherence strength of multiple environments by this quantity. By deriving the non …

Persistent link: https://www.econbiz.de/10010871960

Why risk attitude differs between macro and micro level? : a decoherence perspective

Yi, Zhen; Zhu, Chao; Zhang, Yuwei - In: International review of economics & finance : IREF 92 (2024), pp. 978-997

Persistent link: https://www.econbiz.de/10014535062

Quantum dynamics of a strongly coupled dissipative system toward thermal equilibrium II

Murao, Mio; Shibata, Fumiaki - In: Physica A: Statistical Mechanics and its Applications 238 (1997) 1, pp. 265-278

off-diagonal part with respect to the boson quantum number. The decoherence of the coupled system is investigated using …

Persistent link: https://www.econbiz.de/10010587234

Towards a definition of the quantum ergodic hierarchy: Ergodicity and mixing

Castagnino, Mario; Lombardi, Olimpia - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 4, pp. 247-267

In a previous paper we have given a general framework for addressing the definition of quantum chaos by identifying the conditions that a quantum system must satisfy to lead to non-integrability in its classical limit. In this paper we will generalize those results, with the purpose of defining...

Persistent link: https://www.econbiz.de/10010588417

Decoherent quantum walks driven by a generic coin operation

Abal, G.; Donangelo, R.; Severo, F.; Siri, R. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 1, pp. 335-345

We consider the effect of different unitary noise mechanisms on the evolution of a quantum walk (QW) on a linear chain with a generic coin operation: (i) bit-flip channel noise, restricted to the coin subspace of the QW and (ii) topological noise caused by randomly broken links in the linear...

Persistent link: https://www.econbiz.de/10010588767