Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Gurvitz, Shmuel"'
We present a novel approach for evaluating Wannier functions, offering a new perspective on their role in many-body systems. Unlike traditional methods, such as the maximally localized Wannier functions approach, which focuses on minimizing the funct
Externí odkaz:
http://arxiv.org/abs/2409.04311
Autor:
Gurvitz, Shmuel
Publikováno v:
Eur. Phys. J. Spec. Top. (2021) 230:827-835
We investigate time-dependent electron current through a quantum dot under external drive (pulses), coupled to leads at zero bias. Simple analytic expressions for current, generated by periodic pulses of any shape, are obtained without any use of the
Externí odkaz:
http://arxiv.org/abs/2006.00983
Autor:
Gurvitz, Shmuel
Publikováno v:
J. Phys. A: Math. Theor. 52 (2019) 175301
Using a new developed Single-Electron approach, we derive the Landauer-type formula for electron transport in arbitrary time-dependent potentials. This formula is applied for randomly fluctuating potentials represented by a dichotomic noise. We found
Externí odkaz:
http://arxiv.org/abs/1811.01403
Publikováno v:
Eur. Phys. J. Special Topics 227, 2349 (2019)
Starting from the many-body Schr\"odinger equation, we derive a new type of Lindblad Master equations describing a cyclic exciton/electron dynamics in the light harvesting complex and the reaction center. These equations resemble the Master equations
Externí odkaz:
http://arxiv.org/abs/1804.06260
Autor:
Gurvitz, Shmuel
New time-dependent treatment of tunneling from localized state to continuum is proposed. It does not use the Laplace transform (Green's function's method) and can be applied for time-dependent potentials, as well. This approach results in simple expr
Externí odkaz:
http://arxiv.org/abs/1802.10148
Usually the study of energy-transfer in the light harvesting complex is limited by a single-exciton motion along the antenna. Starting from the many-body Schr\"odinger equation, we derived Lindblad-type Master equations describing the cyclic exciton-
Externí odkaz:
http://arxiv.org/abs/1706.01958
Autor:
Gurvitz, Shmuel
Publikováno v:
Front. Phys. 12(4), 120303 (2017)
This paper presents a comprehensive review of the wave-function approach for derivation of the number-resolved Master equations, used for description of transport and measurement in mesoscopic systems. The review contains important amendments, clarif
Externí odkaz:
http://arxiv.org/abs/1611.04961
Autor:
Gurvitz, Shmuel
Publikováno v:
Fortschr. Phys. 65,1600065 (2017)
We consider {\em non-selective} continuous measurements of a particle tunneling to a reservoir of finite band-width ($\Lambda$). The particle is continuously monitored by frequent projective measurements ("quantum trajectory"), separated by a time-in
Externí odkaz:
http://arxiv.org/abs/1605.05553
Publikováno v:
Physical Review B 94, 075437 (2016)
The environment of a quantum dot, which is connected to two leads, is modeled by telegraph noise, i.e. random Markovian jumps of the (spinless) electron energy on the dot between two levels. The temporal evolutions of the charge on the dot and of the
Externí odkaz:
http://arxiv.org/abs/1603.00627
Publikováno v:
J. Math. Biol., Vol. 74, 43-76 (2017)
We describe a simple and consistent quantum mathematical model that simulates the possible role of quantum interference and sink effects in the nonphotochemical quenching (NPQ) in light-harvesting complexes (LHCs). Our model consists of a network of
Externí odkaz:
http://arxiv.org/abs/1412.3499