Efficient adiabatic tracking of driven quantum nonlinear systems

Autor:	Hans-Rudolf Jauslin, Claude Leroy, Artur Ishkhanyan, Mariam Gevorgyan, Stéphane Guérin
Rok vydání:	2013
Předmět:	Physics Nonlinear system symbols.namesake Classical mechanics Phase space Quantum system symbols Fixed point Hamiltonian (quantum mechanics) Adiabatic quantum computation Adiabatic process Quantum Atomic and Molecular Physics and Optics
Zdroj:	Physical Review A. 88
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.88.063622
Popis:	We derive a technique of robust and efficient adiabatic passage for a driven nonlinear quantum system, describing the transfer to a molecular Bose-Einstein condensate from an atomic one by external fields. The pulse ingredients are obtained by tracking the dynamics derived from a Hamiltonian formulation, in the adiabatic limit. This leads to a nonsymmetric and nonmonotonic chirp. The efficiency of the method is demonstrated in terms of classical phase space, more specifically with the underlying fixed points and separatrices. We also prove the crucial property that this nonlinear system does not have any solution leading exactly to a complete transfer. It can only be reached asymptotically for an infinite pulse area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9810b2c61061a9528d8c8ae18aafab0e https://doi.org/10.1103/physreva.88.063622 Zobrazit plný text záznamu