Zobrazeno 1 - 10
of 23
pro vyhledávání: '"N. V. Gnezdilov"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-19 (2023)
Abstract The dynamics when a hot many-body quantum system is brought into instantaneous contact with a cold many-body quantum system can be understood as a combination of early time quantum correlation (von Neumann entropy) gain and late time energy
Externí odkaz:
https://doaj.org/article/f568eeb8188346cda6253f67437c988e
Quantum tunneling dynamics in a complex-valued Sachdev-Ye-Kitaev model quench-coupled to a cool bath
Publikováno v:
Physical Review B, 104(11)
The Sachdev-Ye-Kitaev (SYK) model describes interacting fermionic zero modes in zero spatial dimensions, e.g. quantum dot, with interactions strong enough to completely washout quasiparticle excitations in the infrared. In this paper, we consider the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b4fe87f3f4137b7a4212defd087f816
https://hdl.handle.net/1887/3264272
https://hdl.handle.net/1887/3264272
We consider non-equilibrium dynamics of two initially independent reservoirs $A$ and $B$ filled with a cold Fermi gas coupled and decoupled by two quantum quenches following one another. We find that the von Neumann entropy production induced by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::435465cc6777d433416f2388571841c1
Publikováno v:
Physical Review B. 100
The Planckian relaxation rate $\ensuremath{\hbar}/{t}_{\mathrm{P}}=2\ensuremath{\pi}{k}_{\mathrm{B}}T$ sets a characteristic timescale for both the equilibration of quantum critical systems and maximal quantum chaos. In this Rapid Communication, we s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69bdc32e07686326584c598c3cfd700b
https://doi.org/10.1103/physrevb.100.220506
https://doi.org/10.1103/physrevb.100.220506
Publikováno v:
Physical Review B, 99(16), 165149
We study the observable properties of quantum systems which involve a quantum continuum as a subpart. We show in a very general way that in any system, which consists of at least two isolated states coupled to a continuum, the spectral function of on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d91da01cbc90b29c1f7c3f94b22c26c0
https://doi.org/10.1103/physrevb.99.165149
https://doi.org/10.1103/physrevb.99.165149
Publikováno v:
Physical Review B, 98(8), 081413(R)
The Sachdev-Ye-Kitaev (SYK) model describes a strongly correlated metal with all-to-all random interactions (average strength $J$) between $N$ fermions (complex Dirac fermions or real Majorana fermions). In the large-$N$ limit a conformal symmetry em
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be415a56c9f12098857f1433f5f51c76
http://arxiv.org/abs/1807.09099
http://arxiv.org/abs/1807.09099
Autor:
İnanç Adagideli, C. W. J. Beenakker, N. V. Gnezdilov, Yaroslav Herasymenko, Elizabeth Dresselhaus, V. P. Ostroukh, Jakub Tworzydlo
Publikováno v:
Physical Review B, 97(24), 241403
Dirac electrons in graphene have a valley degree of freedom that is being explored as a carrier of information. In that context of "valleytronics" one seeks to coherently manipulate the valley index. Here we show that reflection from a superlattice p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54275d3d51dc8412285c1437e153cc4d
https://hdl.handle.net/1887/71080
https://hdl.handle.net/1887/71080
Publikováno v:
New Journal of Physics, 20, 023016
New Journal of Physics
New Journal of Physics
Recent experiments by Guti\'errez $\textit{et al.}$ [Nature Phys. $\textbf{12}$, 950 (2016)] on a graphene-copper superlattice have revealed an unusual Kekul\'e bond texture in the honeycomb lattice --- a Y-shaped modulation of weak and strong bonds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f138a9adfd2fb4bd95eb2880133a925
http://hdl.handle.net/1887/68667
http://hdl.handle.net/1887/68667
Autor:
N. V. Gnezdilov, Sergei I. Mukhin
Publikováno v:
Physical Review A, 97(5), 053809
We found analytically a first order quantum phase transition in the Cooper pair box array of $N$ low-capacitance Josephson junctions capacitively coupled to a resonant photon in a microwave cavity. The Hamiltonian of the system maps on the extended D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e1792c7233adc856395e9d0bbc14805
http://hdl.handle.net/1887/68639
http://hdl.handle.net/1887/68639
Autor:
N. V. Gnezdilov
Publikováno v:
Physical Review B, 99(2), 024506
We show that a single-fermion quantum dot acquires odd-frequency Gor'kov anomalous averages in proximity to strongly correlated Majorana zero modes, described by the Sachdev-Ye-Kitaev (SYK) model. Despite the presence of finite anomalous pairing, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1871e411c255becee1ff5afe309bff8f