Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Katarzyna Macieszczak"'
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033047 (2021)
We present a general theory of classical metastability in open quantum systems. Metastability is a consequence of a large separation in timescales in the dynamics, leading to the existence of a regime when states of the system appear stationary, befo
Externí odkaz:
https://doaj.org/article/e031f7b9135649ffad8a6d6fefe5194b
Publikováno v:
New Journal of Physics, Vol 16, Iss 11, p 113002 (2014)
We advocate a Bayesian approach to optimal quantum frequency estimation—an important issue for future quantum enhanced atomic clock operation. The approach provides a clear insight into the interplay between decoherence and the extent of prior know
Externí odkaz:
https://doaj.org/article/46db9b2c3a584bb39176883784044b01
We study the transient dynamics subject to quantum coherence effects of two interacting parallel quantum dots weakly coupled to macroscopic leads. The stationary particle current of this quantum system is sensitive to perturbations much smaller than
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ff40c95e8376309b64d950c00ea9d76
http://arxiv.org/abs/2212.07799
http://arxiv.org/abs/2212.07799
Publikováno v:
Physical review. E. 105(4-1)
We study in detail an open quantum generalisation of a classical kinetically constrained model -- the East model -- known to exhibit slow glassy dynamics stemming from a complex hierarchy of metastable states with distinct lifetimes. Using the recent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e619e26538bc01836e59676fc37b0eb2
https://pubmed.ncbi.nlm.nih.gov/35590670
https://pubmed.ncbi.nlm.nih.gov/35590670
Publikováno v:
Physical Review Research. 3
We present a general theory of classical metastability in open quantum systems. Metastability is a consequence of a large separation in timescales in the dynamics, leading to the existence of a regime when states of the system appear stationary, befo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80c8c315527f06efd1cd0ac8afc658f9
https://doi.org/10.1103/physrevresearch.3.033047
https://doi.org/10.1103/physrevresearch.3.033047
Autor:
Katarzyna Macieszczak, Dominic Rose
Publikováno v:
Physical Review A. 103
We consider Markovian dynamics of a finitely dimensional open quantum system featuring a weak unitary symmetry, i.e., when the action of a unitary symmetry on the space of density matrices commutes with the master operator governing the dynamics. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::258a3d70c43408de3a4779682b92a7ba
https://doi.org/10.1103/physreva.103.042204
https://doi.org/10.1103/physreva.103.042204
Publikováno v:
Physical Review A, 101(4):043847. American Physical Society
We study the preparation of coherent quantum states in a two-photon micromaser for applications in quantum metrology. While this setting can be in principle realized in a host of physical systems, we consider atoms interacting with the field of a cav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38b598743841d5ef641a6a41f369f57d
https://doi.org/10.1103/PhysRevA.101.043847
https://doi.org/10.1103/PhysRevA.101.043847
While the scaling of entanglement in a quantum system can be used to distinguish many-body quantum phases, it is usually hard to quantify the amount of entanglement in mixed states of open quantum systems, while measuring entanglement experimentally,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cd644a2248a8738b35087dfa854ec49
Thermodynamic uncertainty relations (TURs) are recently established relations between the relative uncertainty of time-integrated currents and entropy production in nonequilibrium systems. For small perturbations away from equilibrium, linear respons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::288a77ea56c97f5dc7f0455f8fde5708
http://arxiv.org/abs/1803.01904
http://arxiv.org/abs/1803.01904
Autor:
Yan-Li Zhou, Katarzyna Macieszczak, Weibin Li, Igor Lesanovsky, Sebastian Hofferberth, Juan P. Garrahan
Publikováno v:
Macieszczak, K, Zhou, Y, Hofferberth, S, Garrahan, J P, Li, W & Lesanovsky, I 2017, ' Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems ', Physical Review A, vol. 96, no. 4, 043860 . https://doi.org/10.1103/PhysRevA.96.043860
We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by Rydberg atoms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8298034de9d4d9b7bc1d83449a0f98e
https://findresearcher.sdu.dk:8443/ws/files/129209209/Metastable_decoherence_free_subspaces_and_electromagnetically_induced_transparency_in_interacting_many_body_systems.pdf
https://findresearcher.sdu.dk:8443/ws/files/129209209/Metastable_decoherence_free_subspaces_and_electromagnetically_induced_transparency_in_interacting_many_body_systems.pdf