Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Emil A. Yuzbashyan"'
Autor:
Athreya Shankar, Emil A. Yuzbashyan, Victor Gurarie, Peter Zoller, John J. Bollinger, Ana Maria Rey
Publikováno v:
PRX Quantum, Vol 3, Iss 4, p 040324 (2022)
Two-dimensional p+ip superconductors and superfluids are systems that feature chiral behavior emerging from the Cooper pairing of electrons or neutral fermionic atoms with nonzero angular momentum. Their realization has been a longstanding goal becau
Externí odkaz:
https://doaj.org/article/814de9d54f4c4c028e0873937d428c47
Publikováno v:
Physical Review B. 106
We study the Loschmidt echo in the quenched two-dimensional $p$-wave topological superconductor. We find that if this superconductor is quenched out of the critical point separating its topological and non-topological phases into either of the two ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da6072a76c9e8f48178ce1744eaf189
https://doi.org/10.1103/physrevb.106.l220506
https://doi.org/10.1103/physrevb.106.l220506
Publikováno v:
Physical Review B. 106
We study fermions at quantum criticality with extremely retarded interactions of the form $V(\omega_l)=(g/|\omega_l|)^\gamma$, where $\omega_l$ is the transferred Matsubara frequency. This system undergoes a normal-superconductor phase transition at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfc6984f55a110770903d55b1e6c2c52
https://doi.org/10.1103/physrevb.106.064502
https://doi.org/10.1103/physrevb.106.064502
Autor:
Emil A. Yuzbashyan, Boris L. Altshuler
We show that the Migdal-Eliashberg theory loses validity at a finite value $\lambda_c$ of the electron-phonon coupling $\lambda$ regardless of the underlying model Hamiltonian. The value of $\lambda_c$ is approximately between 3.0 and 3.7. The new ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::444a77f67c115aeaa5c3cb41dbe3a521
We show that the classical (mean-field) description of far from equilibrium superconductivity is exact in the thermodynamic limit for local observables but breaks down for global quantities, such as the entanglement entropy or Loschmidt echo. We do t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd0fa334593e713e856879b43aa0998
Publikováno v:
Physical Review A. 104
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8959a4864c040c19d1a4e5834b0be14a
https://doi.org/10.1103/physreva.104.029905
https://doi.org/10.1103/physreva.104.029905
Autor:
Aidan Zabalo, Emil A. Yuzbashyan
We study the quench dynamics of a topological $p$-wave superfluid with two competing order parameters, $\Delta_\pm(t)$. When the system is prepared in the $p+ip$ ground state and the interaction strength is quenched, only $\Delta_+(t)$ is nonzero. Ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a5ad67564c1aad176720c83259fb056
http://arxiv.org/abs/2107.06926
http://arxiv.org/abs/2107.06926
Non-analyticities in the logarithm of the Loschmidt echo, known as dynamical quantum phase transitions [DQPTs], are a recently introduced attempt to classify the myriad of possible phenomena which can occur in far from equilibrium closed quantum syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7fd0936bfed399b9f992d6d4bdb8b51
http://arxiv.org/abs/2103.03754
http://arxiv.org/abs/2103.03754
Publikováno v:
New Journal of Physics, Vol 18, Iss 3, p 033010 (2016)
Anderson localization is known to be inevitable in one-dimension for generic disordered models. Since localization leads to Poissonian energy level statistics, we ask if localized systems possess ‘additional’ integrals of motion as well, so as to
Externí odkaz:
https://doaj.org/article/eda1c540a2214df5adc3c9d87967dc9d
Publikováno v:
Physical Review A. 100
We predict synchronization of the chaotic dynamics of two atomic ensembles coupled to a heavily damped optical cavity mode. The atoms are dissipated collectively through this mode and pumped incoherently to achieve a macroscopic population of the cav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de2607a5800866ecc79fe383a4fb5f1f
https://doi.org/10.1103/physreva.100.023418
https://doi.org/10.1103/physreva.100.023418