scholarly journals Quantum information processing based onP31nuclear spin qubits in a quasi-one-dimensionalSi28nanowire

2007 ◽  
Vol 75 (4) ◽  
Author(s):  
Issai Shlimak ◽  
Israel Vagner
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing ◽  
Spin Qubits

Optically controlled semiconductor spin qubits for quantum information processing

2009 ◽  
Vol T137 ◽  
pp. 014010 ◽  
Author(s):  
Y Yamamoto ◽  
T D Ladd ◽  
D Press ◽  
S Clark ◽  
K Sanaka ◽  
...  
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing ◽  
Spin Qubits

scholarly journals Robust coherent control of solid-state spin qubits using anti-Stokes excitation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jun-Feng Wang ◽  
Fei-Fei Yan ◽  
Qiang Li ◽  
Zheng-Hao Liu ◽  
Jin-Ming Cui ◽  
...  
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Solid State ◽  
Color Center ◽  
Coherent Control ◽  
Quantum Information Processing ◽  
Spin Qubits ◽  
Silicon Vacancy ◽  
Quantum Sensing ◽  
Anti Stokes

AbstractOptically addressable solid-state color center spin qubits have become important platforms for quantum information processing, quantum networks and quantum sensing. The readout of color center spin states with optically detected magnetic resonance (ODMR) technology is traditionally based on Stokes excitation, where the energy of the exciting laser is higher than that of the emission photons. Here, we investigate an unconventional approach using anti-Stokes excitation to detect the ODMR signal of silicon vacancy defect spin in silicon carbide, where the exciting laser has lower energy than the emitted photons. Laser power, microwave power and temperature dependence of the anti-Stokes excited ODMR are systematically studied, in which the behavior of ODMR contrast and linewidth is shown to be similar to that of Stokes excitation. However, the ODMR contrast is several times that of the Stokes excitation. Coherent control of silicon vacancy spin under anti-Stokes excitation is then realized at room temperature. The spin coherence properties are the same as those of Stokes excitation, but with a signal contrast that is around three times greater. To illustrate the enhanced spin readout contrast under anti-Stokes excitation, we also provide a theoretical model. The experiments demonstrate that the current anti-Stokes excitation ODMR approach has promising applications in quantum information processing and quantum sensing.

Quantum Information Processing

2001 ◽  
Author(s):  
David P. DiVincenzo ◽  
Charles H. Bennett
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing

QCCM - Center for NMR Quantum Information Processing

2011 ◽  
Author(s):  
David G. Cory ◽  
Chandrasekhar Ramanathan ◽  
Raymond Laflamme ◽  
Joseph V. Emerson ◽  
Jonathan Baugh
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing
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