



@article {1353,
	title = {Dynamic Nuclear Polarization in Double Quantum Dots},
	journal = {Physical Review Letters},
	volume = {104},
	year = {2010},
	month = {2010/6/4},
	abstract = {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 build up of a large difference in the Overhauser fields across the dots, the saturation of the nuclear polarization process associated with formation of so-called "dark states," and the elimination of the difference field. We show that in the case of unequal dots, build up of difference fields generally accompanies the nuclear polarization process, whereas for nearly identical dots, build up of difference fields competes with polarization saturation in dark states. The elimination of the difference field does not, in general, correspond to a stable steady state of the polarization process.
},
	doi = {10.1103/PhysRevLett.104.226807},
	url = {http://arxiv.org/abs/1003.4508v2},
	author = {Michael Gullans and J. J. Krich and J. M. Taylor and H. Bluhm and B. I. Halperin and C. M. Marcus and M. Stopa and A. Yacoby and M. D. Lukin}
}
@article {1354,
	title = {High-sensitivity diamond magnetometer with nanoscale resolution},
	journal = {Nature Physics},
	volume = {4},
	year = {2008},
	month = {2008/9/14},
	pages = {810 - 816},
	abstract = {We present a novel approach to the detection of weak magnetic fields that takes advantage of recently developed techniques for the coherent control of solid-state electron spin quantum bits. Specifically, we investigate a magnetic sensor based on Nitrogen-Vacancy centers in room-temperature diamond. We discuss two important applications of this technique: a nanoscale magnetometer that could potentially detect precession of single nuclear spins and an optical magnetic field imager combining spatial resolution ranging from micrometers to millimeters with a sensitivity approaching few femtotesla/Hz$^{1/2}$.
},
	doi = {10.1038/nphys1075},
	url = {http://arxiv.org/abs/0805.1367v1},
	author = {J. M. Taylor and P. Cappellaro and L. Childress and L. Jiang and D. Budker and P. R. Hemmer and A. Yacoby and R. Walsworth and M. D. Lukin}
}
@article {1359,
	title = {Relaxation, dephasing, and quantum control of electron spins in double quantum dots},
	journal = {Physical Review B},
	volume = {76},
	year = {2007},
	month = {2007/7/13},
	abstract = {Recent experiments have demonstrated quantum manipulation of two-electron spin states in double quantum dots using electrically controlled exchange interactions. Here, we present a detailed theory for electron spin dynamics in two-electron double dot systems that was used to guide these experiments and analyze experimental results. The theory treats both charge and spin degrees of freedom on an equal basis. Specifically, we analyze the relaxation and dephasing mechanisms that are relevant to experiments and discuss practical approaches for quantum control of two-electron system. We show that both charge and spin dephasing play important roles in the dynamics of the two-spin system, but neither represents a fundamental limit for electrical control of spin degrees of freedom in semiconductor quantum bits.
},
	doi = {10.1103/PhysRevB.76.035315},
	url = {http://arxiv.org/abs/cond-mat/0602470v2},
	author = {J. M. Taylor and J. R. Petta and A. C. Johnson and A. Yacoby and C. M. Marcus and M. D. Lukin}
}
@article {1362,
	title = {Solid-state circuit for spin entanglement generation and purification},
	journal = {Physical Review Letters},
	volume = {94},
	year = {2005},
	month = {2005/6/15},
	abstract = {We show how realistic charge manipulation and measurement techniques, combined with the exchange interaction, allow for the robust generation and purification of four-particle spin entangled states in electrically controlled semiconductor quantum dots. The generated states are immunized to the dominant sources of noise via a dynamical decoherence-free subspace; all additional errors are corrected by a purification protocol. This approach may find application in quantum computation, communication, and metrology.
},
	doi = {10.1103/PhysRevLett.94.236803},
	url = {http://arxiv.org/abs/cond-mat/0503255v2},
	author = {J. M. Taylor and W. D{\"u}r and P. Zoller and A. Yacoby and C. M. Marcus and M. D. Lukin}
}
