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Hybrid Quantum Devices and Quantum Engineering
(IOP Science, 2009)
We discuss prospects of building hybrid quantum devices involving elements of atomic and
molecular physics, quantum optics and solid-state elements with the attempt to combine
advantages of the respective systems in ...
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 ...
Modulation Spectroscopy and Dynamics of Double Occupancies in a Fermionic Mott Insulator
(American Physical Society, 2009)
We calculate the rate of creation of double occupancies in a 3D Fermionic Mott insulator near half-filling by modulation of optical lattice potential. At high temperatures, incoherent holes lead to a broad response peaked ...
Global Operations For Protected Quantum Memories In Atomic Spin Lattices
(2009)
Quantum information processed in strongly correlated states of matter can provide built in hardware protection against errors. We may encode information in highly non local degrees of freedom, such as using three dimensional ...
Coherence And Control Of Quantum Registers Based On Electronic Spin In A Nuclear Spin Bath
(American Physical Society, 2009)
We consider a protocol for the control of few-qubit registers comprising one electronic spin embedded in a nuclear spin bath. We show how to isolate a few proximal nuclear spins from the rest of the bath and use them as ...
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 ...
Electromagnetically Induced Transparency with Noisy Lasers
(American Physical Society, 2009)
We demonstrate and characterize two coherent phenomena that can mitigate the effects of laser phase noise for Electromagnetically Induced Transparency (EIT): a laser-power-broadening-resistant resonance in the transmitted ...
Near-field Electrical Detection of Optical Plasmons and Single Plasmon Sources
(Nature Publishing Group, 2009)
Photonic circuits can be much faster than their electronic counterparts, but they are difficult to miniaturize below the optical wavelength scale. Nanoscale photonic circuits based on surface plasmon polaritons (SPPs) are ...
Photon Storage in Lambda-type Optically Dense Atomic Media. IV. Optimal Control Using Gradient Ascent
(American Physical Society, 2008)
We use the numerical gradient ascent method from optimal control theory to extend efficient photon storage in Lambda-type media to previously inaccessible regimes and to provide simple intuitive explanations for our ...
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 ...