scholarly journals Heat current fluctuations and anomalous transport in low-dimensional carbon lattices

2019 ◽  
Vol 100 (24) ◽  
Author(s):  
Ushnish Ray ◽  
David T. Limmer
Keyword(s):  
Anomalous Transport ◽  
Current Fluctuations ◽  
Heat Current ◽  
Low Dimensional

Non-universality of anomalous transport

1998 ◽  
Vol 59 (4) ◽  
pp. 671-682 ◽  
Author(s):  
G. M. ZASLAVSKY
Keyword(s):  
Phase Space ◽  
Hamiltonian Systems ◽  
Parameter Space ◽  
Chaotic Dynamics ◽  
Anomalous Transport ◽  
Kinetic Description ◽  
Space Topology ◽  
Low Dimensional ◽  
Phase Space Topology

For low-dimensional Hamiltonian systems with chaotic dynamics, we discuss the differences in the kinetic description, and the necessity of windowing of the time and parameter space, which is imposed by the differences in the phase-space topology and by the stickiness of trajectories at island boundaries.

scholarly journals Heat Generation by Electrical Current in a Quantum Dot Hybridized to Majorana Nanowires

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhu-Hua Wang
Keyword(s):  
Quantum Dot ◽  
Bias Voltage ◽  
Heat Generation ◽  
Bound States ◽  
Waste Heat ◽  
Electrical Current ◽  
Function Technique ◽  
Heat Current ◽  
Low Dimensional ◽  
Direct Hybridization

Heat current generated by electronic transport through a quantum dot (QD) coupled to both a phonon bath and a Majorana nanowire hosting Majorana bound states (MBSs) is theoretically studied in the framework of non-equilibrium Green’s function technique. The calculated numerical results show that electrical current can be either enhanced or suppressed by the combined influences of the phonon bath and the MBSs at certain bias voltage regimes. The enhancement and suppression of the current’s magnitude for a fixed bias voltage will be reversed due to the direct hybridization between the MBSs. The simultaneous coupling between both MBSs will amplify the function of the MBSs on the current, with the same unchanged and essential qualitative impacts. Heat generation by the electrical current can be fully adjusted by the dot–MBS coupling, direct hybridization between the MBSs, and positions of the dot level. By properly choosing the above parameters, heat generation can be suppressed even for increased electrical current, which is favorable in removing waste heat generated by electrical current flowing through low-dimensional circuits.

Heat current fluctuations in quantum wires

2001 ◽  
Vol 64 (23) ◽  
Author(s):  
I. V. Krive ◽  
E. N. Bogachek ◽  
A. G. Scherbakov ◽  
Uzi Landman
Keyword(s):  
Quantum Wires ◽  
Current Fluctuations ◽  
Heat Current

Temperature noise in a thermally homogeneous conductor

1969 ◽  
Vol 47 (21) ◽  
pp. 2363-2369
Author(s):  
Amarnath Kshatriya ◽  
Ronald E. Burgess
Keyword(s):  
Spectral Density ◽  
Current Fluctuations ◽  
Heat Current ◽  
The Past ◽  
Black Bodies ◽  
Analytical Expressions ◽  
Temperature Noise ◽  
Number Of Authors

A thermally homogeneous conductor is characterized by complete correlation in temperature at all points on it. A theory for temperature noise in such a conductor is developed. A relation for spectral density of heat current fluctuations between two black bodies in radiative contact is derived.Erroneous analytical expressions used in the past for evaluating bolometer performance by a number of authors are reconsidered in the light of the theories developed in this paper.

scholarly journals Power spectrum of electronic heat current fluctuations

2013 ◽  
Vol 250 (11) ◽  
pp. 2355-2364 ◽  
Author(s):  
Fei Zhan ◽  
Sergey Denisov ◽  
Peter Hänggi
Keyword(s):  
Power Spectrum ◽  
Current Fluctuations ◽  
Heat Current ◽  
Electronic Heat
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