Spin-based quantum-information processing with semiconductor quantum dots and cavity QED

Journal Article · Wed Jan 01 00:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.014306· OSTI ID:20634186

Mang, Feng ^[1]; D'Amico, Irene; Zanardi, Paolo ^[1]; Rossi, Fausto ^[1]

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1. Institute for Scientific Interchange (ISI) Foundation, Villa Gualino, Viale Settimio Severo 65, I-10133 Torino (Italy)

A quantum-information-processing scheme is proposed with semiconductor quantum dots located in a high-Q single-mode QED cavity. The spin degrees of freedom of one excess conduction electron of the quantum dots are employed as qubits. Excitonic states, which can be produced ultrafast with optical operation, are used as auxiliary states in the realization of quantum gates. We show how properly tailored ultrafast laser pulses and Pauli-blocking effects can be used to achieve a universal encoded quantum computing.

• OSTI ID: 20634186
• Journal Information: Physical Review. A, Vol. 67, Issue 1; Other Information: DOI: 10.1103/PhysRevA.67.014306; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CHANNELING
DATA PROCESSING
DEGREES OF FREEDOM
ELECTRONS
INFORMATION THEORY
LASER RADIATION
OPTICS
PULSES
QUANTUM DOTS
QUANTUM ELECTRODYNAMICS
QUANTUM MECHANICS
SEMICONDUCTOR MATERIALS
SPIN