Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Tobias Gulden"'
Autor:
Tobias Gulden, Alex Kamenev
Publikováno v:
Entropy, Vol 23, Iss 1, p 125 (2021)
We study dynamics and thermodynamics of ion transport in narrow, water-filled channels, considered as effective 1D Coulomb systems. The long range nature of the inter-ion interactions comes about due to the dielectric constants mismatch between the w
Externí odkaz:
https://doaj.org/article/0821ff002ca741e2912deec288310ddc
Publikováno v:
SciPost Physics, Vol 9, Iss 1, p 015 (2020)
We investigate a mechanism to transiently stabilize topological phenomena in long-lived quasi-steady states of isolated quantum many-body systems driven at low frequencies. We obtain an analytical bound for the lifetime of the quasi-steady states
Externí odkaz:
https://doaj.org/article/fdbc278d4d41435e955308bf9bb80594
Autor:
Tobias Gulden, Asaf A. Diringer
Publikováno v:
Physical Review B. 103
We investigate how the critical driving amplitude at the Floquet many-body localized (MBL) to ergodic phase transition differs between smooth and nonsmooth drives. To this end, we numerically study a disordered spin-1/2 chain which is periodically dr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef27d22de63dd072186696c9be20ad34
https://doi.org/10.1103/physrevb.103.214204
https://doi.org/10.1103/physrevb.103.214204
Autor:
Tobias Gulden, Alex Kamenev
Publikováno v:
Entropy, Vol 23, Iss 125, p 125 (2021)
Entropy
Entropy
We study dynamics and thermodynamics of ion channels, considered as effective 1D Coulomb systems. The long range nature of the inter-ion interactions comes about due to the dielectric constants mismatch between the water and lipids, confining the ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e983f6928640d697555d32aeca84588
http://arxiv.org/abs/2012.01390
http://arxiv.org/abs/2012.01390
Autor:
Tobias Gulden, Michael Kreshchuk
The Picard-Fuchs equation is a powerful mathematical tool which has numerous applications in physics, for it allows to evaluate integrals without resorting to direct integration techniques. We use this equation to calculate both the classical action
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::311cd5d9cb48d46af733295041cdfe20
Publikováno v:
Physical Review B. 95
We consider scaling of the entanglement entropy across a topological quantum phase transition for the Kitaev chain model. The change of the topology manifests itself in a subleading term, which scales as ${L}^{\ensuremath{-}1/\ensuremath{\alpha}}$ wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0ca5607acb3f5fcd66fc719b5f1a55a
https://doi.org/10.1103/physrevb.95.075401
https://doi.org/10.1103/physrevb.95.075401
Autor:
Michael Kreshchuk, Tobias Gulden
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 52:395302
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5ea3bbba03640aff6a30feb4d6ed790
https://doi.org/10.1088/1751-8121/ab3ac2
https://doi.org/10.1088/1751-8121/ab3ac2
Instanton calculations in semiclassical quantum mechanics rely on integration along trajectories which solve classical equations of motion. However in systems with higher dimensionality or complexified phase space these are rarely attainable. A prime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::907dcdc78c2a019ff25b081e2a0e73da
http://arxiv.org/abs/1408.6459
http://arxiv.org/abs/1408.6459
Statistical mechanics of 1D multivalent Coulomb gas may be mapped onto non-Hermitian quantum mechanics. We use this example to develop instanton calculus on Riemann surfaces. Borrowing from the formalism developed in the context of Seiberg-Witten dua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4e125cd55f8ca7f35dda61c1b3b2f6a