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Dissipative Quantum Tunneling and Magnetic Response of a Single Electron in a Four-Well Potential

✍ Scribed by Anatoly Yu. Smirnov

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
246 KB
Volume
264
Category
Article
ISSN
0003-4916

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✦ Synopsis

We study dissipative tunneling of a single electron in a four-well semiconductor nanostructure threaded by a magnetic flux. The system under consideration allows us to investigate an influence of dissipation and irreversibility on two fundamental quantum-interference phenomena: tunneling and the Aharonov Bohm effect at once. We calculate the steady-state magnetic moment of the particle (orbital paramagnetism) and study its temperature dependence. The existence of orbital paramagnetism is evidence for electron persistent tunneling between quantum dots as well as for the conservation of quantum coherence in the thermodynamic-equilibrium state.

πŸ“œ SIMILAR VOLUMES

Quantum coherence and tunnelling in a do
Quantum coherence and tunnelling in a double-well potential in a thermal environment: dynamics of the weakly coupled spin-boson system
✍ H. Dekker πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 22 KB

Quantum coherence and tunnelling in a double-well potential in a thermal environment: dynamics of the weakly coupled spin-boson system H. DEKKER [Physica 144A (1987) 4531 p. 458, 1st line below eq. (2.10): "Hamiltonian part of" should read: "Hermitian part of".