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Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit
(American Association for the Advancement of Science (AAAS), 2012)
Mechanical systems can be influenced by a wide variety of small forces, ranging from gravitational to optical, electrical, and magnetic. When mechanical resonators are scaled down to nanometer-scale dimensions, these forces ...
Long-Range Quantum Gates using Dipolar Crystals
(American Physical Society (APS), 2012)
We propose the use of dipolar spin chains to enable long-range quantum logic between distant qubits. In our approach, an effective interaction between remote qubits is achieved by adiabatically following the ground state ...
Environment-assisted metrology with spin qubits
(American Physical Society (APS), 2012)
We investigate the sensitivity of a recently proposed method for precision measurement [Phys. Rev. Lett. 106, 140502 (2011)], focusing on an implementation based on solid-state spin systems. The scheme amplifies a quantum ...
Sensing Distant Nuclear Spins with a Single Electron Spin
(American Physical Society (APS), 2012)
We experimentally demonstrate the use of a single electronic spin to measure the quantum dynamics of distant individual nuclear spins from within a surrounding spin bath. Our technique exploits coherent control of the ...
Quantum Nonlinear Optics with Single Photons Enabled by Strongly Interacting Atoms
(Nature Publishing Group, 2012)
The realization of strong nonlinear interactions between individual light quanta (photons) is a long-standing goal in optical science and engineering, being of both fundamental and technological significance. In conventional ...
Room-Temperature Quantum Bit Memory Exceeding One Second
(American Association for the Advancement of Science (AAAS), 2012)
Stable quantum bits, capable both of storing quantum information for macroscopic time scales and of integration inside small portable devices, are an essential building block for an array of potential applications. We ...
Reservoir engineering and dynamical phase transitions in optomechanical arrays
(American Physical Society (APS), 2012)
We study the driven-dissipative dynamics of photons interacting with an array of micromechanical membranes in an optical cavity. Periodic membrane driving and phonon creation result in an effective photon-number conserving ...
Measuring mechanical motion with a single spin
(Institute of Physics, 2012)
We study theoretically the measurement of a mechanical oscillator using a single two-level system as a detector. In a recent experiment, we used a single electronic spin associated with a nitrogen–vacancy center in diamond ...
Enhanced metrology using preferential orientation of nitrogen-vacancy centers in diamond
(American Physical Society (APS), 2012)
We demonstrate preferential orientation of nitrogen-vacancy (NV) color centers along two of four possible crystallographic axes in diamonds grown by chemical vapor deposition on the {100} face. We identify the relevant ...
Tailoring Light-Matter Interaction with a Nanoscale Plasmon Resonator
(American Physical Society (APS), 2012)
We propose and demonstrate a new approach for achieving enhanced light-matter interactions with quantum emitters. Our approach makes use of a plasmon resonator composed of defect-free, highly crystalline silver nanowires ...