Results 11 to 20 of about 824,226 (150)
Gaussian work extraction from random Gaussian states is nearly impossible
Physical Review Research, 2023 Quantum thermodynamics can be naturally phrased as a theory of quantum state transformation and energy exchange for small-scale quantum systems undergoing thermodynamical processes, thereby making the resource theoretical approach very well suited. A key
Uttam Singh +2 more
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Physical Review Research, 2021 Gaussian states and measurements collectively are not powerful-enough resources for quantum computing, as any Gaussian dynamics can be simulated efficiently, classically.
Christos N. Gagatsos, Saikat Guha
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Local optimization on pure Gaussian state manifolds
SciPost Physics, 2021 We exploit insights into the geometry of bosonic and fermionic Gaussian states to develop an efficient local optimization algorithm to extremize arbitrary functions on these families of states.
Bennet Windt, Alexander Jahn, Jens Eisert, Lucas Hackl
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Entanglement of formation dynamics of a two-mode system in a common Gaussian noisy channel [PDF]
Kragujevac Journal of ScienceEntanglement of formation is a measure that has a clear physically motivated definition, namely, it provides a lower bound over all pure-state entanglement decompositions required to create a given state.
Stoica Alina +2 more
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Optimality of Gaussian Discord [PDF]
, 2013 In this Letter we exploit the recently-solved conjecture on the bosonic minimum output entropy to show the optimality of Gaussian discord, so that the computation of quantum discord for bipartite Gaussian states can be restricted to local Gaussian ...
Braunstein, Samuel L. +4 more
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Continuous Variable Entanglement in Non-Zero Orbital Angular Momentum States
Proceedings, 2019 Orbital angular momentum is a discrete degree of freedom that can access an infinite dimensional Hilbert space, thus enhancing the information capacity of a single optical beam. Continuous variables field quadratures allow achieving some quantum tasks in
Adriana Pecoraro +3 more
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Certification of Non-Gaussian States with Operational Measurements
PRX Quantum, 2021 We derive a theoretical framework for the experimental certification of non-Gaussian features of quantum states using double homodyne detection. We rank experimental non-Gaussian states according to the recently defined stellar hierarchy and we propose ...
Ulysse Chabaud +6 more
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Classical simulation and quantum resource theory of non-Gaussian optics [PDF]
QuantumWe propose efficient algorithms for classically simulating Gaussian unitaries and measurements applied to non-Gaussian initial states. The constructions are based on decomposing the non-Gaussian states into linear combinations of Gaussian states.
Oliver Hahn +3 more
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Entanglement in continuous variable systems: Recent advances and current perspectives [PDF]
, 2007 We review the theory of continuous-variable entanglement with special emphasis on foundational aspects, conceptual structures, and mathematical methods.
Fabrizio Illuminati +2 more
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Key distillation from Gaussian states by Gaussian operations [PDF]
, 2004 We study the secrecy properties of Gaussian states under Gaussian operations. Although such operations are useless for quantum distillation, we prove that it is possible to distill a secret key secure against any attack from sufficiently entangled ...
Acín, Antonio +6 more
core +3 more sources