Zobrazeno 1 - 10
of 3 190
pro vyhledávání: '"Rajchel, A."'
Sufficient analytical conditions for separability in composite quantum systems are very scarce and only known for low-dimensional cases. Here, we use linear maps and their inverses to derive powerful analytical conditions, providing tight bounds and
Externí odkaz:
http://arxiv.org/abs/2410.22415
The ability to characterise and discern quantum channels is a crucial aspect of noisy quantum technologies. In this work, we explore the problem of distinguishing quantum channels when limited to sub-exponential resources, framed as von Neumann (proj
Externí odkaz:
http://arxiv.org/abs/2410.14608
Publikováno v:
Phys. Rev. A 110, 032428 (2024)
Many-body quantum systems can be characterised using the notions of \emph{k}-separability and entanglement depth. A quantum state is \emph{k}-separable if it can be expressed as a mixture of \emph{k} entangled subsystems, and its entanglement depth i
Externí odkaz:
http://arxiv.org/abs/2406.10662
Autor:
Salazar, Roberto, Czartowski, Jakub, Rodríguez, Ricard Ravell, Rajchel-Mieldzioć, Grzegorz, Horodecki, Paweł, Życzkowski, Karol
A class of quantum resource theories, based on non-convex star-shape sets, presented in this work captures the key quantum properties that cannot be studied by standard convex theories. We provide operational interpretations for a resource of this cl
Externí odkaz:
http://arxiv.org/abs/2405.05785
Akademický článek
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Autor:
Srivastava, Anubhav Kumar, Müller-Rigat, Guillem, Lewenstein, Maciej, Rajchel-Mieldzioć, Grzegorz
Publikováno v:
Lecture Notes in Physics, vol 1025. (2024), Springer, Cham
The quantum mechanics formalism introduced new revolutionary concepts challenging our everyday perceptions. Arguably, quantum entanglement, which explains correlations that cannot be reproduced classically, is the most notable of them. Besides its fu
Externí odkaz:
http://arxiv.org/abs/2402.09523
Publikováno v:
Quantum Sci. Technol. 9 045047 (2024)
In the domain of quantum metrology, cat states have demonstrated their utility despite their inherent fragility with respect to losses. Here, we introduce noise robust optical cat states which exhibit a metrological robustness for phase estimation in
Externí odkaz:
http://arxiv.org/abs/2311.01371
Autor:
Palmieri, Adriano Macarone, Müller-Rigat, Guillem, Srivastava, Anubhav Kumar, Lewenstein, Maciej, Rajchel-Mieldzioć, Grzegorz, Płodzień, Marcin
Publikováno v:
Phys. Rev. Research 6, 033248 (2024)
Resource-efficient quantum state tomography is one of the key ingredients of future quantum technologies. In this work, we propose a new tomography protocol combining standard quantum state reconstruction methods with an attention-based neural networ
Externí odkaz:
http://arxiv.org/abs/2309.10616
We investigate bounds in the transmission of classical information through quantum systems. Our focus lies in the generalized Holevo theorem, which provides a single-letter Holevo-like inequality from arbitrary quantum distance measures. Through the
Externí odkaz:
http://arxiv.org/abs/2309.04539
Autor:
Hanks, Patrick, Lenarčič, Simon
Publikováno v:
Dictionary of American Family Names, 2 ed., 2022.
Externí odkaz:
http://www.oxfordreference.com/view/10.1093/acref/9780190245115.001.0001/acref-9780190245115-e-60691
