Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Beny, Cedric"'
We develop a theory of Gaussian states over general quantum kinematical systems with finitely many degrees of freedom. The underlying phase space is described by a locally compact abelian (LCA) group $G$ with a symplectic structure determined by a 2-
Externí odkaz:
http://arxiv.org/abs/2204.08162
Autor:
van der Horst, Demi, Carter-Timofte, Madalina E., Danneels, Adeline, Silva da Costa, Leandro, Kurmasheva, Naziia, Thielke, Anne L., Hansen, Anne Louise, Chorošajev, Vladimir, Holm, Christian K., Belouzard, Sandrine, de Weber, Ivan, Beny, Cedric, Olagnier, David
Publikováno v:
In Antiviral Research November 2024 231
We use a noncommutative generalization of Fourier analysis to define a broad class of pseudo-probability representations, which includes the known bosonic and discrete Wigner functions. We characterize the groups of quantum unitary operations which c
Externí odkaz:
http://arxiv.org/abs/2004.13860
Autor:
Bény, Cédric
Given two views of data, we consider the problem of finding the features of one view which can be most faithfully inferred from the other. We find that these are also the most correlated variables in the sense of deep canonical correlation analysis (
Externí odkaz:
http://arxiv.org/abs/1904.10387
Publikováno v:
Quantum Inf Process 19, 88 (2020)
We propose a discrete spacetime formulation of quantum electrodynamics in one-dimension (a.k.a the Schwinger model) in terms of quantum cellular automata, i.e. translationally invariant circuits of local quantum gates. These have exact gauge covarian
Externí odkaz:
http://arxiv.org/abs/1903.07007
Numerous quantum many-body systems are characterized by either fundamental or emergent constraints---such as gauge symmetries or parity superselection for fermions---which effectively limit the accessible observables and realizable operations. Moreov
Externí odkaz:
http://arxiv.org/abs/1806.10324
Autor:
Bény, Cédric
Publikováno v:
IJQI 16, 1840012 (2018)
In many-body physics, renormalization techniques are used to extract aspects of a statistical or quantum state that are relevant at large scale, or for low energy experiments. Recent works have proposed that these features can be formally identified
Externí odkaz:
http://arxiv.org/abs/1802.05756
Publikováno v:
Nature Communications 9 (1), 3792 (2018)
What is the energy cost of extracting entanglement from complex quantum systems? In other words, given a state of a quantum system, how much energy does it cost to extract m EPR pairs? This is an important question, particularly for quantum field the
Externí odkaz:
http://arxiv.org/abs/1711.06658
Autor:
Bény, Cédric
Publikováno v:
Quantum Inf Process (2018) 17: 26
We propose a method for stably removing noise from measurements of a quantum many-body system. The question is cast to a linear inverse problem by using a quantum Fischer information metric as figure of merit. This requires the ability to compute the
Externí odkaz:
http://arxiv.org/abs/1708.03215
Autor:
Bény, Cédric
Publikováno v:
New J. Phys. 19, 013013 (2017)
A spin system on a lattice can usually be modelled at large scales by an effective quantum field theory. A key mathematical result relating the two descriptions is the quantum central limit theorem, which shows that certain spin observables satisfy a
Externí odkaz:
http://arxiv.org/abs/1511.05090