Now showing items 1-7 of 7

• Coherence of an Optically Illuminated Single Nuclear Spin Qubit ﻿

(American Physical Society, 2008)
We investigate the coherence properties of individual nuclear spin quantum bits in diamond [Dutt et al., Science, 316, 1312 (2007)] when a proximal electronic spin associated with a nitrogen-vacancy (NV) center is being ...
• Coherent Spin Manipulation in an Exchange-Only Qubit ﻿

(American Physical Society, 2010)
Initialization, two-spin coherent manipulation, and readout of a three-spin qubit are demonstrated using a few-electron triple quantum dot. The three-spin qubit is designed to allow all operations for full qubit control ...
• Dynamic Nuclear Polarization in Double Quantum Dots ﻿

(American Physical Society, 2010)
We theoretically investigate the controlled dynamic polarization of lattice nuclear spins in GaAs double quantum dots containing two electrons. Three regimes of long-term dynamics are identiﬁed, including the buildup of ...
• Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot ﻿

(American Physical Society, 2010)
The influence of gate-controlled two-electron exchange on the relaxation of nuclear polarization in small ensembles $(N \sim 10^6)$ of nuclear spins is examined in a GaAs double quantum dot system. Waiting in the (2,0) ...
• Quantum Repeater with Encoding ﻿

(American Physical Society, 2009)
We propose an approach to implement quantum repeaters for long-distance quantum communication. Our protocol generates a backbone of encoded Bell pairs and uses the procedure of classical error correction during simultaneous ...
• Qubit Protection in Nuclear-Spin Quantum Dot Memories ﻿

(American Physical Society, 2009)
We present a mechanism to protect quantum information stored in an ensemble of nuclear spins in a semiconductor quantum dot. When the dot is charged the nuclei interact with the spin of the excess electron through the ...
• Robust Optical Delay Lines with Topological Protection ﻿

(Nature Publishing Group, 2011)
Phenomena associated with the topological properties of physical systems can be naturally robust against perturbations. This robustness is exemplified by quantized conductance and edge state transport in the quantum Hall ...