搜索结果: 1-15 共查到“量子力学 tunneling”相关记录22条 . 查询时间(0.062 秒)
Macroscopic quantum tunneling in multigap superconducting Josephson junctions: Escape rate enhancement via quantum fluctuations of Josephson-Leggett mode
Macroscopic quantum superconducting Josephson Escape rate enhancement Josephson-Leggett mode
2010/11/5
We theoretically study the macroscopic quantum tunneling (MQT) in a hetero Josephson junction formed by a conventional single-gap superconductor and a multi-gap one such as ${MgB}_{2}$ and iron-based...
Ultrafast control of inelastic tunneling in a double semiconductor quantum
Ultrafast control inelastic tunneling double semiconductor quantum
2010/11/11
In a semiconductor-based double quantum well (QW) coupled to a degree of freedom with an internal dynamics, we demonstrate that the electronic motion is controllable within femtoseconds by applying ap...
Klein tunneling in carbon nanostructures: a free particle dynamics in disguise
Klein tunneling carbon nanostructures particle dynamics disguise
2010/11/9
The absence of backscattering in metallic nanotubes as well as perfect Klein tunneling in the potential barriers in graphene are explained by showing that both phenomena have a free particle dynamics...
Efficient creation of maximally entangled states by modulation of tunneling rates
entangled states modulation of tunneling rates
2010/4/16
For systems described by the two-site Bose-Hubbard Hamiltonian, we show that a sinusoidal modulation of the tunneling matrix element assists higher-order co-tunneling processes. Using this mechanism, ...
Instantonic Methods for Quantum Tunneling in Finite Size
Path Integral Methods Finite Size Systems Instantons
2010/7/8
The instantonic approach for a f4 model potential is reexamined in the asymptotic limit. The path integral of the system is derived in semiclassical approximation expanding the action around the class...
Theory of two-dimensional macroscopic quantum tunneling in YBa$_2$ Cu$_3$ O$_{7-\delta}$ Josephson junctions coupled to an LC circuit
two-dimensional macroscopic quantum tunneling LC circuit
2010/4/13
We investigate classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) Josephson junction coupled to an LC circuit theoretically. Due to the ...
How much time does a tunneling wave packet spent in traversing a barrier? Quantum mechanical calculations result in zero time inside a barrier . In the nineties analogous tunneling experiments with mi...
On the Salecker-Wigner-Peres clock and double barrier tunneling
Salecker-Wigner-Peres clock double barrier tunneling
2010/4/7
In this work we revisit the Salecker-Wigner-Peres clock formalism and show that it can be directly applied to the phenomenon of tunneling. Then we apply this formalism to the determination of the tunn...
Quantum Tunneling Radiation of Kerr-NUT Black Hole
Kerr-NUT black hole energy conservation angular momentum conservation
tunneling rate
2007/8/15
2006Vol.46No.6pp.991-994DOI:
Quantum Tunneling Radiation of Kerr-NUT Black Hole
LI Hui-Ling,1 YANG Shu-Zheng,2 and QI De-Jiang3
1 College of Physics Science and Technolo...
Andreev Tunneling Through a Ferromagnet/Quantum-Dot/Superconductor System
Andreev tunneling ferromagnet/quantum-dot/superconductor system
2007/8/15
2002Vol.38No.5pp.629-633DOI:
Andreev Tunneling Through a Ferromagnet/Quantum-Dot/Superconductor System
RAO Hong-Hu, ZHU Yu, and LIN Tsung-Han
State Key Laboratory for Me...
Quantum Tunneling of Massive Particles from a
Garfinkle-Horowitz-Strominger Dilatonic Black Hole
Hawking radiation quantum tunneling information paradox black hole
2007/8/15
2006Vol.46No.4pp.766-768DOI:
Quantum Tunneling of Massive Particles from a
Garfinkle-Horowitz-Strominger Dilatonic Black Hole
GAO Li and LIU Wen-Biao
Department of Phy...
Quantum Tunneling Radiation of Reissner-Nordström de Sitter
Black Hole with a Global Monopole
Reissner-Nordströ m de Sitter black hole global
monopole energy conservation tunneling rate
2007/8/15
2006Vol.45No.3pp.457-460DOI:
Quantum Tunneling Radiation of Reissner-Nordström de Sitter
Black Hole with a Global Monopole
JIANG Qing-Quan, YANG Shu-Zheng, and LI Hui-Ling
...
Tunneling Dynamics of Two-Species Bose-Einstein Condensates
with Feshbach Resonances
tunneling dynamics molecular Bose-Einstein condensate
Feshbach resonance de-coherence
2007/8/15
2003Vol.40No.4pp.421-424DOI:
Tunneling Dynamics of Two-Species Bose-Einstein Condensates
with Feshbach Resonances
CHEN Chang-Yong
Department of Physics, Loudi Teachers' ...
Tunneling Dynamics of the Halves of a Double-Well Trap Containing a Bose-Einstein Condensate
population difference atomic tunneling current step structure
2007/8/15
2003Vol.40No.4pp.425-428DOI:
Tunneling Dynamics of the Halves of a Double-Well Trap Containing a Bose-Einstein Condensate
YU Zhao-Xian1 and JIAO Zhi-Yong2
1 Department o...
Tunneling Dynamics of Two-Species Bose-Einstein Condensates
tunneling dynamics two-species Bose-Einstein condensates
macroscopic quantum self-trapping
2007/8/15
2003Vol.39No.5pp.613-616DOI:
Tunneling Dynamics of Two-Species Bose-Einstein Condensates
YANG Li-Min,1 YU Zhao-Xian,2,3 and JIAO Zhi-Yong2
1 Department of Applied Mathem...