Transport Across an Impurity in One Dimensional Quantum Liquids Far From Equilibrium
| Autor: | Marco Schiró, Aditi Mitra |
|---|---|
| Přispěvatelé: | Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Department of Physics [New York], New York University [New York] (NYU), NYU System (NYU)-NYU System (NYU), DynIntDisQuant |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Bosonization
Quantum phase transition Physics [PHYS]Physics [physics] Steady state Quantum decoherence Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics FOS: Physical sciences Non-equilibrium thermodynamics Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter - Strongly Correlated Electrons Quantum Gases (cond-mat.quant-gas) Excited state Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Ground state Condensed Matter - Quantum Gases Quantum PACS number(s): 71.10.Pm 67.85.Lm 05.70.Ln |
| Zdroj: | Physical Review B: Condensed Matter and Materials Physics (1998-2015) Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 91, pp.235126. ⟨10.1103/PhysRevB.91.235126⟩ Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 91, pp.235126. ⟨10.1103/PhysRevB.91.235126⟩ |
| ISSN: | 1098-0121 1550-235X |
| DOI: | 10.1103/PhysRevB.91.235126⟩ |
| Popis: | We study the effect of a single impurity on the transport properties of a one dimensional quantum liquid highly excited away from its ground state by a sudden quench of the bulk interaction. In particular we compute the time dependent dc current to leading order in the impurity potential, using bosonization and starting both from the limit of a uniform system and from the one of two decoupled semi-infinite systems. Our results reveal that the nonequilibrium excitation of bulk modes induced by the global quench has important effects on the conductor-insulator quantum phase transition, which turns into a crossover for any small quench amplitude. In addition, the dynamics of the current displays a faster decay towards the steady-state as compared to the equilibrium case, a signature of quench-induced decoherence. 15 pages, 7 figs; v3: minor changes |
| Databáze: | OpenAIRE |
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