Evaluation of hole-spin superposition in GaAs/AlGaAs quantum wells through time-resolved photoluminescence measurements

Relaxation dynamics of the up–down superposition of hole spins in undoped GaAs/AlGaAs quantum wells were investigated by means of time-resolved photoluminescence (PL) measurements with a view toward achieving quantum bits using hole spins. Linearly polarized PL signals reflecting the hole-spin super...

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Veröffentlicht in:	Applied physics letters 2014-06, Vol.104 (25)
Hauptverfasser:	Ito, Tetsu, Gotoh, Hideki, Ichida, Masao, Ando, Hiroaki
Format:	Artikel
Sprache:	eng
Schlagworte:	ALUMINIUM COMPOUNDS Aluminum gallium arsenides Applied physics CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CONFINEMENT EXCITATION Gallium arsenide GALLIUM ARSENIDES HOLES Linear polarization PHOTOLUMINESCENCE POLARIZATION Quantum confinement Quantum theory QUANTUM WELLS QUBITS Qubits (quantum computing) RELAXATION SPIN Superposition (mathematics) Time measurement TIME RESOLUTION VISIBLE RADIATION
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