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7 papers · 2 filters
Stochastic particle creation: from the dynamical Casimir effect to cosmology
Matías Mantiñan, Francisco D. Mazzitelli, Leonardo G. Trombetta
We study a stochastic version of the dynamical Casimir effect, computing the particle creation inside a cavity produced by a random motion of one of its walls. We first present a c…
A signature of quantumness in pure decoherence control
Bartosz Rzepkowski, Katarzyna Roszak
We study a decoherence reduction scheme that involves an intermediate measurement on the qubit in an equal superposition basis, in the general framework of all qubit-environment in…
Qubit-environment entanglement outside of pure decoherence: hyperfine interaction
Tymoteusz Salamon, Marcin Płodzień, Maciej Lewenstein +1
In spin-based architectures of quantum devices, the hyperfine interaction between the electron spin qubit and the nuclear spin environment remains one of the main sources of decohe…
Purifying teleportation
Katarzyna Roszak, Jarosław K. Korbicz
Coupling to the environment typically suppresses quantum properties of physical systems via decoherence mechanisms. This is one of the main obstacles in practical implementations o…
Optimal tests of genuine multipartite nonlocality
Mahasweta Pandit, Artur Barasinski, Istvan Marton +2
We propose an optimal numerical test for genuine multipartite nonlocality based on linear programming. In particular, we consider two non-equivalent models of local hidden variable…
Entanglement quantification from collective measurements processed by machine learning
Jan Roik, Karol Bartkiewicz, Antonín Černoch +1
In this paper, we investigate how to reduce the number of measurement configurations needed for sufficiently precise entanglement quantification. Instead of analytical formulae, we…