Detecting non-Abelian geometric phases with superconducting nanocircuits

Autor:	Guo-Zhi Wang, Hongpei Han, Yuan-Min Zhang, Zhi-Bo Feng
Rok vydání:	2009
Předmět:	Superconductivity Physics Quantum mechanics Scheme (mathematics) Degenerate energy levels Abelian group Condensed Matter Physics Noncommutative geometry Atomic and Molecular Physics and Optics Microwave Electronic Optical and Magnetic Materials
Zdroj:	Physica E: Low-dimensional Systems and Nanostructures. 41:1859-1863
ISSN:	1386-9477
DOI:	10.1016/j.physe.2009.08.004
Popis:	We propose a feasible scheme to detect the noncommutative feature of non-Abelian geometric phases (NAGP) with superconducting nanocircuits. The induced NAGP associated with two-fold degenerate states naturally arises in the chosen four-level subsystem interacting with the microwave pulses. We explicitly show the noncommutative effect of the NAGP by considering the difference between the level populations at the end of the composed evolution loops l 2 l 1 and the counter-ordered one l 1 l 2 . The scheme opens the new possibility for detecting the fundamental characteristics of the NAGP with superconducting circuit devices.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::677a53032e096e1d0c303cd079878a27 https://doi.org/10.1016/j.physe.2009.08.004 Zobrazit plný text záznamu Full Text from ScienceDirect