Zobrazeno 1 - 10
of 225
pro vyhledávání: '"Arrachea L"'
Publikováno v:
Phys. Rev. B 101, 075417 (2020)
We study the heat current through two capacitively coupled quantum dots coupled in series with two conducting leads at different temperatures $T_L$ and $T_R$ in the spinless case (valid for a high applied magnetic field). Our results are also valid f
Externí odkaz:
http://arxiv.org/abs/1909.08670
Publikováno v:
Phys. Rev. B 88, 085122 (2013)
We study the heat transport along an edge state of a two-dimensional electron gas in the quantum Hall regime, in contact to two reservoirs at different temperatures. We consider two exactly solvable models for the edge state coupled to the reservoirs
Externí odkaz:
http://arxiv.org/abs/1305.5833
Autor:
Arrachea, L., Moskalets, M.
Publikováno v:
Handbook of Nanophysics, v.7: Nanomedicine and Nanorobotics, ed. by Klaus D. Sattler .- CRC Press, Taylor & Francis Group, 2010, p.38-1
A quantum dot driven by two ac gate potentials oscillating with a phase lag may be regarded as a quantum engine, where energy is transported and dissipated in the form of heat. In this chapter we introduce a microscopic model for a quantum pump and a
Externí odkaz:
http://arxiv.org/abs/0903.1153
We investigate the behavior of the dc voltage drop in a periodically driven double barrier structure (DBS) sensed by voltages probes that are weakly coupled to the system. We find that the four terminal resistance $R_{4t}$ measured with the probes lo
Externí odkaz:
http://arxiv.org/abs/0809.3799
We investigate the dc response of a 1D disordered ring coupled to a reservoir and driven by a magnetic flux with a linear dependence on time. We identify two regimes: (i) A localized or large length L regime, characterized by a dc conductance, g_{dc}
Externí odkaz:
http://arxiv.org/abs/0707.2785
Publikováno v:
Phys. Rev. B 76, 165401, (2007)
We investigate the behavior of the directed current in one-dimensional systems of Dirac fermions driven by local periodic potentials in the forward as well in backscattering channels. We treat the problem with Keldysh non-equilibrium Green's function
Externí odkaz:
http://arxiv.org/abs/0704.2329
Autor:
Aligia, A. A., Anfossi, A., Arrachea, L., Boschi, C. Degli Esposti, Dobry, A. O., Gazza, C., Montorsi, A., Ortolani, F., Torio, M. E.
Publikováno v:
Phys. Rev. Lett. 99, 206401 (2007)
We determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction X in addition to the usual Coulomb repulsion U at half-filling. For large enough X and positive U the model shows three phases. For large U the s
Externí odkaz:
http://arxiv.org/abs/0704.0717
We calculate the distribution of the conductance G in a one-dimensional disordered wire at finite temperature T and bias voltage V in a independent-electron picture and assuming full coherent transport. At high enough temperature and bias voltage, wh
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606715
The quantum critical behavior of the Ising glass in a magnetic field is investigated. We focus on the spin glass to paramagnet transition of the transverse degrees of freedom in the presence of finite longitudinal field. We use two complementary tech
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302390
We propose a novel approach to calculate dynamical processes at ultrafast time scale in molecules in which vibrational and electronic motions are strongly mixed. The relevant electronic orbitals and their interactions are described by a Hubbard model
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205062