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Quantum chaos with complex, non-periodic orbits

Saraga, DS; Monteiro, TS; (1998) Quantum chaos with complex, non-periodic orbits. Physical Review Letters , 81 (26) , Article 5796. 10.1103/PhysRevLett.81.5796. Green open access

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Abstract

We show that special types of orbits, which are nonperiodic and complex “saddle orbits” (SOs), describe accurately the quantal and experimental current oscillations in the resonant tunneling diode in tilted fields. The SOs solve the puzzle of broad regions of experimental oscillations where we find no real or complex periodic orbit (PO) that can explain the data. The SOs succeed in regimes involving several nonisolated POs, where PO formulas fail. We show that their contribution can, unexpectedly, decay very slowly in the classical limit.

Type: Article
Title: Quantum chaos with complex, non-periodic orbits
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.81.5796
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.81.5796
Language: English
Additional information: © 1998 The American Physical Society
Keywords: Chaos, COMPLEX, COMPLEXES
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/33316
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