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Dispersive magnetometry with a quantum limited SQUID parametric amplifier
Quantum Nanoelectronics Laboratory, Department of Physics, University of California, Berkeley, CA 94720There is currently fundamental and technological interest in measuring and manipulatingnanoscaleExpand
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Calculated signal-to-noise ratio of MRI detected with SQUIDs and Faraday detectors in fields from 10 microT to 1.5 T.
We examine the calculated signal-to-noise ratio (SNR) achievable with different MRI detection modalities in precession fields ranging from 10 microT to 1.5 T. In particular, we compare traditionalExpand
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Single-mode optical fiber for high-power, low-loss UV transmission.
We report large-mode-area solid-core photonic crystal fibers made from fused silica that resist ultraviolet (UV) solarization even at relatively high optical powers. Using a process of hydrogenExpand
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Ion-trap electrode preparation with Ne$^+$ bombardment
We describe an ex-situ surface-cleaning procedure that is shown to reduce motional heating from ion-trap electrodes. This precleaning treatment, to be implemented immediately before the finalExpand
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Millikelvin thermal and electrical performance of lossy transmission line filters
We report on the scattering parameters and Johnson noise emission of low-pass stripline filters employing a magnetically loaded silicone dielectric down to 25 mK. The transmission characteristic of aExpand
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Quantum amplification of mechanical oscillator motion
Improving precision with quantum amplification Quantum mechanically, an object can be described by a pair of noncommuting observables, typically by its position and momentum. The precision to whichExpand
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Single crystal silicon capacitors with low microwave loss in the single photon regime
We have fabricated superconducting microwave resonators in a lumped element geometry using single crystal silicon dielectric parallel plate capacitors with C>2 pF. Aluminum devices with resonantExpand
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Trapped-Ion Spin-Motion Coupling with Microwaves and a Near-Motional Oscillating Magnetic Field Gradient.
We present a new method of spin-motion coupling for trapped ions using microwaves and a magnetic field gradient oscillating close to the ions' motional frequency. We demonstrate and characterize thisExpand
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Dispersive readout of a flux qubit at the single-photon level
A superconducting flux qubit is inductively coupled to a Superconducting QUantum Interference Device (SQUID) magnetometer, capacitively shunted to form a 1.294-GHz resonator. TheExpand
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State Readout of a Trapped Ion Qubit Using a Trap-Integrated Superconducting Photon Detector
We report high-fidelity state readout of a trapped ion qubit using a trap-integrated photon detector. We determine the hyperfine qubit state of a single $^9$Be$^+$ ion held in a surface-electrode rfExpand
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