General Galilei Covariant Gaussian Maps

Gasbarri, Giulio; Toroš, Marko; Bassi, Angelo

doi:10.1103/physrevlett.119.100403

Cited by 5 publications

(11 citation statements)

References 85 publications

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“…The translation invariance criterion is generalized to non-Markovian dynamics in Ref. [50]. Suppose that some eigenstate |Ψ 0 of HamiltonianĤ is also the fixed point of the quantum Liouvillian L defined by Eqs.…”

Section: Introductionmentioning

confidence: 99%

No Thermalization without Correlations

2017

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The proof of the long-standing conjecture is presented that Markovian quantum master equations are at odds with quantum thermodynamics under conventional assumptions of fluctuation-dissipation theorems (implying a translation invariant dissipation). Specifically, except for identified systems, persistent system-bath correlations of at least one kind, spatial or temporal, are obligatory for thermalization. A systematic procedure is proposed to construct translation invariant bath models producing steady states that well approximate thermal states. A quantum optical scheme for the laboratory assessment of the developed procedure is outlined.

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Section: Introductionmentioning

confidence: 99%

No Thermalization without Correlations

2017

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“…In light of the central role that they play in the experimental investigation of quantum macroscopicity 24,25 , in the following, we will focus on such models as benchmarks for precision tests of quantum mechanics.…”

Section: Superposition Of Macroscopic Systems: the Case For Spacementioning

confidence: 99%

Testing the foundation of quantum physics in space via Interferometric and non-interferometric experiments with mesoscopic nanoparticles

et al. 2021

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Quantum technologies are opening novel avenues for applied and fundamental science at an impressive pace. In this perspective article, we focus on the promises coming from the combination of quantum technologies and space science to test the very foundations of quantum physics and, possibly, new physics. In particular, we survey the field of mesoscopic superpositions of nanoparticles and the potential of interferometric and non-interferometric experiments in space for the investigation of the superposition principle of quantum mechanics and the quantum-to-classical transition. We delve into the possibilities offered by the state-of-the-art of nanoparticle physics projected in the space environment and discuss the numerous challenges, and the corresponding potential advancements, that the space environment presents. In doing this, we also offer an ab-initio estimate of the potential of space-based interferometry with some of the largest systems ever considered and show that there is room for tests of quantum mechanics at an unprecedented level of detail.

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“…Assumptions (i) and (ii) are both related to Galilei space-time symmetries. Specifically, assumption (i) implies the following dynamical map (in the interaction picture) [39]:…”

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confidence: 99%

“…( 5) is in the choice of the operators J. To remove it, one is tempted to impose the full Galilei symmetry group, specifically covariance under boosts, but this leads to an infinite temperature increase for an isolated system [39]. To avoid this unphysical feature, we relax this assumption, and require instead that an isolated system has the (ii) stationary Gibbs state:…”

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confidence: 99%