Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Polyakov, D. G."'
Autor:
Gornyi, I. V., Polyakov, D. G.
Publikováno v:
Phys. Rev. B 108, 165429 (2023)
We formulate a general framework to study the flow of the electron liquid in two dimensions past a random array of impenetrable obstacles in the presence of a magnetic field. We derive a linear-response formula for the resistivity tensor $\hat\rho$ i
Externí odkaz:
http://arxiv.org/abs/2308.06876
Publikováno v:
Phys. Rev. B 104, 115416 (2021)
We study electron transport through a multichannel fractional quantum Hall edge in the presence of both interchannel interaction and random tunneling between channels, with emphasis on the role of contacts. The prime example in our discussion is the
Externí odkaz:
http://arxiv.org/abs/2105.04013
Publikováno v:
Phys. Rev. B 100, 165410 (2019)
We study charge transport through $N$-lead junctions ($N\geq 3$) of spinless Luttinger liquid wires with bias voltages applied to Fermi-liquid reservoirs. In particular, we consider a Y junction, which is a setup characteristic of the tunneling exper
Externí odkaz:
http://arxiv.org/abs/1907.08034
Akademický článek
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Publikováno v:
Phys. Rev. B 95, 155447 (2017)
We calculate the conductances of a three-way junction of spinless Luttinger-liquid wires as functions of bias voltages applied to three independent Fermi-liquid reservoirs. In particular, we consider the setup that is characteristic of a tunneling ex
Externí odkaz:
http://arxiv.org/abs/1701.06886
Publikováno v:
Phys. Rev. B 96, 115417 (2017)
We study manifestations of spin-charge separation (SCS) in transport through a tunnel-coupled interacting single-channel quantum ring. We focus on the high-temperature case (temperature $T$ larger than the level spacing $\Delta$) and discuss both the
Externí odkaz:
http://arxiv.org/abs/1612.03159
We show that many-body localization, which exists in tight-binding models, is unstable in a continuum. Irrespective of the dimensionality of the system, many-body localization does not survive the unbounded growth of the single-particle localization
Externí odkaz:
http://arxiv.org/abs/1611.05895
Publikováno v:
Annalen der Physik (Berlin), 1600360 (2017)
We analyze the role of spectral diffusion in the problem of many-body delocalization in quantum dots and in extended systems. The spectral diffusion parametrically enhances delocalization, modifying the scaling of the delocalization threshold with th
Externí odkaz:
http://arxiv.org/abs/1611.02681
Publikováno v:
Phys. Rev. B 95, 045150 (2017)
We theoretically study Coulomb drag between two helical edges with broken spin-rotational symmetry, such as would occur in two capacitively coupled quantum spin Hall insulators. For the helical edges, Coulomb drag is particularly interesting because
Externí odkaz:
http://arxiv.org/abs/1610.01100
Publikováno v:
Phys. Rev. B 93, 125419 (2016)
We revisit the problem of quantum localization of many-body states in a quantum dot and the associated problem of relaxation of an excited state in a finite correlated electron system. We determine the localization threshold for the eigenstates in Fo
Externí odkaz:
http://arxiv.org/abs/1512.01807