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Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)
We propose an experiment to search for QCD axion and axionlike-particle dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying C P -odd nuclear momentsExpand
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.
Nuclear magnetic resonance detection and spectroscopy of single proteins using quantum logic
Using quantum logic to improve readout fidelity and a surface-treatment technique to extend the spin coherence time of shallow nitrogen-vacancy centers, magnetic field sensitivity sufficient to detect individual proton spins within 1 second of integration is demonstrated. Expand
Overview of the Cosmic Axion Spin Precession Experiment (CASPEr)
An overview of our experimental program to search for axion and axion-like-particle (ALP) dark matter using nuclear magnetic resonance (NMR) techniques is presented. An oscillating axion field canExpand
Nanoscale NMR spectroscopy and imaging of multiple nuclear species.
Nuclear magnetic resonance spectroscopy and MRI of multiple nuclear species are realized in non-uniform samples under ambient conditions and at moderate magnetic fields using two complementary sensor modalities. Expand
Magnetic resonance detection of individual proton spins using quantum reporters.
This work demonstrates a method of magnetic resonance imaging with single nuclear-spin sensitivity under ambient conditions that realizes a new platform for probing novel materials, monitoring chemical reactions, and manipulation of complex systems on surfaces at a quantum level. Expand
NMR technique for determining the depth of shallow nitrogen-vacancy centers in diamond
United States. Defense Advanced Research Projects Agency. Quantum-Assisted Sensing and Readout Program
Probing the frontiers of particle physics with tabletop-scale experiments
This approach using precision measurement techniques and devices from atomic, quantum, and condensed-matter physics to detect tiny signals due to new particles or forces may well come first from small-scale experiments of this type. Expand
Production of long-lived atomic vapor inside high-density buffer gas
(Dated: February 1, 2008)Atomic vapor of four different paramagnetic species: gold, silver, lithium, and rubidium, is pro-duced and studied inside several buffer gases: helium, nitrogen, neon, andExpand
Quantum Metrology Enhanced by Repetitive Quantum Error Correction.
The universal extension of sensing time, robust to noise at any frequency, demonstrates the definitive advantage entangled multiqubit systems provide for quantum sensing and offers an important complement to quantum control techniques. Expand