Showing papers by "Michael Walsh published in 2015"
TL;DR: This work reports nitrogen-vacancy-nanocavity systems in the strong Purcell regime with optical quality factors approaching 10,000 and electron spin coherence times exceeding 200 μs using a silicon hard-mask fabrication process, providing an efficient quantum memory for quantum networks.
Abstract: Nitrogen-vacancy centres in diamond have established themselves as excellent candidates for solid-state quantum memories due to their optical addressability and long coherence times Here, the authors report on a diamond-nanocavity system with improved spin-photon interface performances
197 citations
Journal Article•
TL;DR: Sara L. Mouradian, Tim Schroder, Carl B. Poitras, Luozhou Li, Jordan Goldstein, Edward H. Chen, Michael Walsh, Jaime Cardenas, Matthew L. Markham, Daniel J. Twitchen, Michal Lipson, and Dirk Englund Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139.
Abstract: Sara L. Mouradian, Tim Schroder, Carl B. Poitras, Luozhou Li, Jordan Goldstein, Edward H. Chen, Michael Walsh, Jaime Cardenas, Matthew L. Markham, Daniel J. Twitchen, Michal Lipson, and Dirk Englund Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA Element Six, 3901 Burton Drive, Santa Clara, California 95054, USA (Received 23 August 2014; revised manuscript received 15 April 2015; published 21 July 2015)
121 citations
TL;DR: The high yield integration of high-quality solid-state qubits into an on-chip photonic circuit could provide a stable and scalable architecture to build such a network as mentioned in this paper.
Abstract: Quantum networks built out of distinct quantum bits (qubits) connected via photons may enable quantum computation and long-distance communication. The high yield integration of high-quality solid-state qubits into an on-chip photonic circuit could provide a stable and scalable architecture to build such a network.
82 citations
10 May 2015
TL;DR: In this article, the authors demonstrate the high-yield creation of nitrogen-vacancy centers in the mode-maxima of a variety of functional photonic elements with less than 30nm precision.
Abstract: We demonstrate the high-yield creation of nitrogen-vacancy centers in the mode-maxima of a variety of functional photonic elements with less than 30nm precision. We create 1.1 NVs per photonic-crystal-cavity and show strong Purcell enhancement.
3 citations
27 Jun 2015
TL;DR: In this article, progress towards the development of on-chip photonic integrated circuits (PICs) with multiple NV quantum memories entangled via photons is discussed and discussed in detail.
Abstract: We discuss progress towards the development of on-‐chip photonic integrated circuits (PICs) with multiple NV quantum memories entangled via photons.
10 May 2015
TL;DR: In this paper, the authors discuss progress towards the development of on-chip quantum networks of multiple spin qubits in nitrogen vacancy (NV) centers in diamond and report NV-nanocavity systems in the strong Purcell regime, implantation of NVs with nanometer-scale apertures, including into cavity field maxima.
Abstract: We discuss progress towards the development of on-chip quantum networks of multiple spin qubits in nitrogen vacancy (NV) centers in diamond. We report NV-nanocavity systems in the strong Purcell regime; implantation of NVs with nanometer-scale apertures, including into cavity field maxima; hybrid on-chip networks for integration of multiple functional NV-cavity systems; and scalable integration of superconducting nanowire single photon detectors on-chip.