Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Galperin, Yuri"'
We study theoretically the effect of the effective dimensionality of the phonon gas distribution on the heat exchange between electrons and phonons in layered nanostructures. If we denote the electrons temperature by $T_e$ and the phonons temperature
Externí odkaz:
http://arxiv.org/abs/1810.02360
Publikováno v:
Physical Review APPLIED 8, 034027 (2017)
Complex systems close to their critical state can exhibit abrupt transitions, avalanches, between their metastable states. It is a challenging task to understand the mechanism of the avalanches and control their behavior. Here we investigate microwav
Externí odkaz:
http://arxiv.org/abs/1709.04669
Publikováno v:
Phys. Rev. E 95, 062129 (2017)
In any general cycle of measurement, feedback and erasure, the measurement will reduce the entropy of the system when information about the state is obtained, while erasure, according to Landauer's principle, is accompanied by a corresponding increas
Externí odkaz:
http://arxiv.org/abs/1701.03648
We discuss the energy distribution of free-electron Fermi-gas, a problem with a textbook solution of Gaussian energy fluctuations in the limit of a large system. We find that for a small system, characterized solely by its heat capacity $C$, the dist
Externí odkaz:
http://arxiv.org/abs/1605.05877
Autor:
Bergli, Joakim, Galperin, Yuri M.
Publikováno v:
AIP Conf. Proc. 1610, 41 (2014)
We have studied the AC response of a hopping model in the variable range hopping regime by dynamical Monte Carlo simulations. We find that the conductivity as function of frequency follows a universal scaling law. We also compare the numerical result
Externí odkaz:
http://arxiv.org/abs/1409.0671
The classical problem of magnetic stripe domain behavior in films and plates with uniaxial magnetic anisotropy is treated. Exact analytical results are derived for the stripe domain widths as function of applied perpendicular field, $H$, in the regim
Externí odkaz:
http://arxiv.org/abs/1211.1366
We investigate the decoherence of a qubit coupled to either a quantum two-level system (TLS) again coupled to an environment, or a classical fluctuator modeled by random telegraph noise. In order to do this we construct a model for the quantum TLS wh
Externí odkaz:
http://arxiv.org/abs/1206.2174
By use of a generalized Bloch vector construction, we study the decoherence of a system composed of two interacting qubits in a general noisy environment. In particular, we investigate the effects of correlations in the noise acting on distinct qubit
Externí odkaz:
http://arxiv.org/abs/1205.0457
Publikováno v:
Phys. Rev. A. 85. 052117 2012
We study the decoherence of a central spin-1/2 due to a closed environment composed of spin-1/2 particles. It is known that a frustrated spin environment, such as a spin glass, is much more efficient for decoherence of the central spin than a similar
Externí odkaz:
http://arxiv.org/abs/1202.0676
Publikováno v:
Phys. Rev. B 84, 245416 (2011)
We study the effect of external driving on the two level systems (TLSs) assumed to be a major obstacle in increasing the coherence time of solid state Josephson-junction qubits. We find, by use of a Bloch-Redfield approach, that external driving has
Externí odkaz:
http://arxiv.org/abs/1109.6753