Журнал Экспериментальной и Теоретической Физики
НАЧАЛО | ПОИСК | ДЛЯ АВТОРОВ | ПОМОЩЬ      e
Общая информация о журнале
Золотые страницы
Адреса редакции
Содержание журнала
Сообщения редакции
Правила для авторов
Загрузить статью
Проверить статус статьи


ЖЭТФ, Том 146, Вып. 6, стр. 1176 (Декабрь 2014)
(Английский перевод - JETP, Vol. 119, No 6, p. 1028, December 2014 доступен on-line на www.springer.com )

SHOOTING QUASIPARTICLES FROM ANDREEV BOUND STATES IN A SUPERCONDUCTING CONSTRICTION
Riwar R.P., Houzet M., Meyer J., Nazarov Yu.V.

Поступила в редакцию: 19 Мая 2014

DOI: 10.7868/S0044451014120037

DJVU (98.2K) PDF (267.2K)

A few-channel superconducting constriction provides a set of discrete Andreev bound states that may be populated with quasiparticles. Motivated by recent experimental research, we study the processes in an a.c. driven constriction whereby a quasiparticle is promoted to the delocalized states outside the superconducting gap and flies away. We distinguish two processes of this kind. In the process of ionization, a quasiparticle present in the Andreev bound state is transferred to the delocalized states leaving the constriction. The refill process involves two quasiparticles: one flies away while another one appears in the Andreev bound state. We notice an interesting asymmetry of these processes. The electron-like quasiparticles are predominantly emitted to one side of the constriction while the hole-like ones are emitted to the other side. This produces a charge imbalance of accumulated quasiparticles, that is opposite on opposite sides of the junction. The imbalance may be detected with a tunnel contact to a normal metal lead. Contribution for the JETP special issue in honor of A. F. Andreev's 75th birthday

 
Сообщить о технических проблемах