English
Related papers

Related papers: How should we interpret the two transport relaxati…

200 papers

Our experiments show that for two or more pieces of a wire, of different lengths in general, combined in parallel and connected to a dc source, the current ratio evolves towards unity as the combination is cooled to the superconducting…

Superconductivity · Physics 2009-11-11 S. Sarangi , S. P. Chockalingam , Raghav G Mavinkurve , S. V. Bhat , N. Kumar

Transport through two one-dimensional interacting metals (Luttinger liquids) coupled together at a single point is analyzed. The dominant coupling mechanism is shown to be of electrostatic nature. Describing the voltage sources by boundary…

Strongly Correlated Electrons · Physics 2009-10-31 Andrei Komnik , Reinhold Egger

Quantum transport simulations are rapidly evolving and now encompass well-controlled tensor network techniques for many-body limits. One powerful approach combines matrix product states with extended reservoirs. In this method, continuous…

Mesoscale and Nanoscale Physics · Physics 2021-10-22 Gabriela Wojtowicz , Justin E. Elenewski , Marek M. Rams , Michael Zwolak

Both transport $\tau_{tr}$ and elastic scattering times $\tau_{e}$ are experimentally determined from the carrier density dependence of the magnetoconductance of monolayer and bilayer graphene. Both times and their dependences in carrier…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 M. Monteverde , C. Ojeda-Aristizabal , R. Weil , K. Bennaceur , M. Ferrier , S. Gueron , C. Glattli , H. Bouchiat , J. N. Fuchs , D. Maslov

We study a system of two coupled transport equations with freezing. The solutions freeze in time when they are equal. We prove existence and uniqueness of continuous solutions if the initial conditions are continuous. We discuss several…

Analysis of PDEs · Mathematics 2024-06-10 Krzysztof Burdzy , John Sylvester

We have calculated quark and anti-quark relaxation time by considering different possible elastic and inelastic scatterings in the medium. Comparative role of these elastic and inelastic scatterings on different transport coefficients are…

Nuclear Theory · Physics 2019-01-09 Sabyasachi Ghosh , Fernando E. Serna , Aman Abhishek , Gastao Krein , Hiranmaya Mishra

Using a quasi-Corbino geometry to directly study electron transport between spin-split edge states, we find a pronounced hysteresis in the I-V curves, originating from slow relaxation processes. We attribute this long-time relaxation to the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 E. V. Deviatov , A. Wurtz , A. Lorke , M. Yu. Melnikov , V. T. Dolgopolov , D. Reuter , A. D. Wieck

A phenomenological model with itinerant bands and local states trapped by the lattice on the Cu-sites, is discussed to describe global features of cuprates. Relative energy positions of localized and itinerant states being tuned…

Strongly Correlated Electrons · Physics 2007-05-23 Lev P. Gor'kov

We study metallic transport in an effective model that describes the coupling of electrons to fluctuating magnetic moments with full SU(2) symmetry, exhibiting characteristic behavior of metals at the approach of the Mott transition. We…

Strongly Correlated Electrons · Physics 2024-03-12 Sergio Ciuchi , Simone Fratini

We develop a theory to describe energy relaxation of photo-excited carriers in low-temperature ordered states with band gap opening and formulate carrier relaxation time $\tau$ near and below transition temperature $T_{\mathrm{c}}$ by…

Mesoscale and Nanoscale Physics · Physics 2012-02-14 Shota Ono , Hiroyuki Shima , Yasunori Toda

A theory has been worked out for the cuprates, which is based on the major features of their first-principles-derived electronic structure, including the contribution of a large-U band. Within this theory the puzzling physics of the…

Superconductivity · Physics 2007-05-23 J. Ashkenazi

A simple model of a degenerate two-dimensional Bose liquid interacting with a fluctuating gauge field is investigated as a possible candidate to describe the charge degree of freedom in the normal state of the cuprate superconductors. We…

Condensed Matter · Physics 2009-10-28 Don H. Kim , Derek K. K. Lee , Patrick A. Lee

The relaxation phenomena of charge carriers in hopping system have been demonstrated and investigated theoretically. An analytical model describing the charge carrier relaxation is proposed based on the hopping transport theory. The…

Materials Science · Physics 2014-12-16 Nianduan Lu , Ling Li , Pengxiao Suna , Ming Liu

The chaotic scattering theory is here extended to obtain escape-rate expressions for the transport coefficients appropriate for a simple classical fluid, or for a chemically reacting system. This theory allows various transport coefficients…

chao-dyn · Physics 2009-10-22 J. R. Dorfman , P. Gaspard

We compute second order transport coefficients of the dilute Fermi gas at unitarity. The calculation is based on kinetic theory and the Boltzmann equation at second order in the Knudsen expansion. The second order transport coefficients…

Quantum Gases · Physics 2014-11-05 Thomas Schaefer

Relaxation and correlation times are two parameters used frequently in approximate descriptions of the time development of hadronizing system from some initial state towards distributions observed experimentally. Chosen to reproduce the…

High Energy Physics - Phenomenology · Physics 2021-07-07 Maciej Rybczynski , Grzegorz Wilk , Zbigniew Wlodarczyk

We consider the inverse problem for time-dependent semilinear transport equations. We show that time-independent coefficients of both the linear (absorption or scattering coefficients) and nonlinear terms can be uniquely determined, in a…

Analysis of PDEs · Mathematics 2024-05-13 Ru-Yu Lai , Gunther Uhlmann , Hanming Zhou

Despite the structural resemblance of certain cuprate and nickelate parent compounds there is a striking spread of $T_c$ among such transition metal oxide superconductors. We adopt a minimal two-orbital $e_g$ model which covers cuprates and…

We describe a competetive equillibrium in a railway cargo transportation model. We reduce the problem of finding this equillibrium to the solution of to mutually dual convex optimization problems. According to L.V. Kantorvich we interpret…

Optimization and Control · Mathematics 2015-01-12 Alexander Shananin , Michael Vaschenko , Alexander Gasnikov , Evgeny Molchanov , Ludmila Pospelova

We calculate spin relaxation rates in lateral quantum dot systems due to electron exchange between dots and leads. Using rate equations, we develop a theoretical description of the experimentally observed electric current in the spin…

Mesoscale and Nanoscale Physics · Physics 2008-12-08 A. B. Vorontsov , M. G. Vavilov