Browsing by Author "Sushkov, Alexander"

Now showing items 1-7 of 7

    • All-Optical Sensing of a Single-Molecule Electron Spin 

      Sushkov, Alexander; Chisholm, N.; Lovchinsky, I.; Kubo, M.; Lo, P. K.; Bennett, Steven; Hunger, D.; Akimov, Alexey; Walsworth, Ronald Lee; Park, H.; Lukin, Mikhail D. (American Chemical Society (ACS), 2014)
      We demonstrate an all-optical method for magnetic sensing of individual molecules in ambient conditions at room temperature. Our approach is based on shallow nitrogen-vacancy (NV) centers near the surface of a diamond ...

    • Magnetic Resonance Detection of Individual Proton Spins Using Quantum Reporters 

      Sushkov, Alexander; Lovchinsky, I.; Chisholm, N.; Walsworth, Ronald Lee; Park, Hongkun; Lukin, Mikhail D. (American Physical Society (APS), 2014)
      We demonstrate a method of magnetic resonance imaging with single nuclear-spin sensitivity under ambient conditions. Our method employs isolated electronic-spin quantum bits (qubits) as magnetic resonance “reporters” on ...

    • A method for directional detection of dark matter using spectroscopy of crystal defects 

      Rajendran, Surjeet; Zobrist, Nicholas; Sushkov, Alexander; Walsworth, Ronald; Lukin, Mikhail (American Physical Society (APS), 2017-08-15)
      We propose a method to identify the direction of an incident weakly interacting massive particle (WIMP) via induced nuclear recoil. Our method is based on spectroscopic interrogation of quantum defects in macroscopic ...

    • Nanoscale NMR spectroscopy and imaging of multiple nuclear species 

      DeVience, Stephen J.; Pham, Linh My; Lovchinsky, Igor; Sushkov, Alexander; Bar-Gill, Nir; Belthangady, Chinmay N.; Casola, Francesco; Corbett, Madeleine; Zhang, Huiliang; Lukin, Mikhail D.; Park, Hongkun; Yacoby, Amir; Walsworth, Ronald Lee (Nature Publishing Group, 2015)
      Nuclear magnetic resonance (NMR) spectroscopy and magnetic resonance imaging (MRI) provide non-invasive information about multiple nuclear species in bulk matter, with wide-ranging applications from basic physics and ...

    • NMR technique for determining the depth of shallow nitrogen-vacancy centers in diamond 

      Pham, Linh My; DeVience, Stephen J.; Casola, Francesco; Lovchinsky, Igor; Sushkov, Alexander; Bersin, Eric Alexander; Lee, Junghyun; Urbach, Elana; Cappellaro, Paola; Park, Hongkun; Yacoby, Amir; Lukin, Mikhail D.; Walsworth, Ronald Lee (American Physical Society (APS), 2016)
      We demonstrate a robust experimental method for determining the depth of individual shallow nitrogen-vacancy (NV) centers in diamond with ∼1 nm uncertainty. We use a confocal microscope to observe single NV centers ...

    • Nuclear magnetic resonance detection and spectroscopy of single proteins using quantum logic 

      Lovchinsky, Igor; Sushkov, Alexander; Urbach, Elana Kahn; de Leon, N; Choi, Soonwon; De Greve, Kristiaan; Evans, Ruffin Eley; Gertner, Rona S.; Bersin, Eric Alexander; Muller, C; McGuinness, L.; Jelezko, F.; Walsworth, Ronald Lee; Park, Hongkun; Lukin, Mikhail D. (American Association for the Advancement of Science (AAAS), 2016)
      Nuclear magnetic resonance spectroscopy is a powerful tool for the structural analysis of organic compounds and biomolecules but typically requires macroscopic sample quantities. We use a sensor, which consists of two ...

    • Quantum Error Correction for Metrology 

      Kessler, Eric; Lovchinsky, Igor; Sushkov, Alexander; Lukin, Mikhail D. (American Physical Society (APS), 2014)
      We propose and analyze a new approach based on quantum error correction (QEC) to improve quantum metrology in the presence of noise. We identify the conditions under which QEC allows one to improve the signal-to-noise ratio ...