A turnstile electron-spin entangler in semiconductors | Zendy

Claudia Sifel | Zendy; Ulrich Hohenester | Zendy

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A turnstile electron-spin entangler in semiconductors

Author(s) -

Claudia Sifel,

Ulrich Hohenester

Publication year - 2003

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1590425

Subject(s) - turnstile , electron , quantum tunnelling , spin (aerodynamics) , physics , quantum entanglement , condensed matter physics , quantum dot , exciton , semiconductor , relaxation (psychology) , quantum , quantum mechanics , philosophy , linguistics , thermodynamics , psychology , social psychology

We propose a single-electron doped quantum dot in a field-effect structure asan optically triggered turnstile for spin-entangled electrons. A short laserpulse excites a charged exciton, whose quantum properties are transferredthrough tunneling and relaxation to the spin entanglement between electrons inthe dot and contact. We identify the pertinent disentanglement mechanisms, anddiscuss experimental detection and possible application schemes.Comment: 3 pages, 1 figure; to appear in Appl. Phys. Let

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