Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Cătălin Paşcu Moca"'
Autor:
Miklós Antal Werner, Cătălin Paşcu Moca, Márton Kormos, Örs Legeza, Balázs Dóra, Gergely Zaránd
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043020 (2023)
Particle formation represents a central theme in various branches of physics, often associated to confinement. Here we show that dynamical hadron formation can be spectroscopically detected in an ultracold atomic setting within the most paradigmatic
Externí odkaz:
https://doaj.org/article/48c8c502cc894d33bdf3ee1a63d7c49c
Autor:
Zoltán Scherübl, Gergő Fülöp, Cătălin Paşcu Moca, Jörg Gramich, Andreas Baumgartner, Péter Makk, Tosson Elalaily, Christian Schönenberger, Jesper Nygård, Gergely Zaránd, Szabolcs Csonka
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Local magnetic moments coupled to superconductors can form subgap Yu-Shiba-Rusinov states. Here the authors show that Shiba states made with an InAs nanowire quantum dot have large spatial extent, which is beneficial for making Shiba chains that are
Externí odkaz:
https://doaj.org/article/c6663a4a2db8422cb07e7b0b833d21f1
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023067 (2022)
We study the Coulomb glass emerging from the interplay of strong interactions and disorder in a model of spinless fermions on the Bethe lattice. In the infinite coordination number limit, strong interactions induce a metallic Coulomb glass phase with
Externí odkaz:
https://doaj.org/article/43119b1cf4d24ba9a154f7bc43dcaba3
Publikováno v:
Physical Review B. 107
We study the dissipative dynamics of a one-dimensional bosonic system described in terms of the bipartite Bose-Hubbard model with alternating gain and loss. This model exhibits the $\mathcal{PT}$ symmetry under some specific conditions and features a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26e50aab9133e1ffb64f6b2c967d2a65
https://doi.org/10.1103/physrevb.107.115111
https://doi.org/10.1103/physrevb.107.115111
Autor:
Balázs Dóra, Cătălin Paşcu Moca
We study non-hermitian many-body physics in the interacting Hatano-Nelson model with open boundary condition. The violation of reciprocity, resulting from an imaginary vector potential, induces the non-hermitian skin-effect and causes exponential loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5d98f05fb3ec9ab5dd1b7f032596924
http://arxiv.org/abs/2208.12017
http://arxiv.org/abs/2208.12017
We perform a comparative study for the magnetization dynamics within linear response theory of one and two dimensional massive Dirac electrons, after switching on either a real (hermitian) or an imaginary (non-hermitian) magnetic field. While hermiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6812b22ce0651a8148ed5ff41c74b804
http://arxiv.org/abs/2205.04795
http://arxiv.org/abs/2205.04795
We consider a PT-symmetric Fermi gas with an exceptional point, representing the critical point between PT-symmetric and symmetry broken phases. The low energy spectrum remains linear in momentum and is identical to that of a hermitian Fermi gas. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76509d11c25bd852e8e3d4ad67446de6
http://arxiv.org/abs/2112.08294
http://arxiv.org/abs/2112.08294
Publikováno v:
Physical Review Letters. 127
Magnetic impurities embedded in a metal are screened by the Kondo effect, signaled by the formation of an extended correlation cloud, the so-called Kondo or screening cloud. In a superconductor, the Kondo state turns into subgap Yu-Shiba-Rusinov stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2183c3b3972ea208ee38fda297d76d47
https://doi.org/10.1103/physrevlett.127.186804
https://doi.org/10.1103/physrevlett.127.186804
Publikováno v:
Physical review letters. 128(1)
Linear response theory plays a prominent role in various fields of physics and provides us with extensive information about the thermodynamics and dynamics of quantum and classical systems. Here we develop a general theory for the linear response in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fff7fa7342dd5158340d7211fd42cfe1
https://pubmed.ncbi.nlm.nih.gov/35061493
https://pubmed.ncbi.nlm.nih.gov/35061493
The Lindhard function represents the basic building block of many-body physics and accounts for charge response, plasmons, screening, Friedel oscillation, RKKY interaction etc. Here we study its non-Hermitian version in one dimension, where quantum e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdc5ade91a619b717cdb449bef994dda