Российский Квантовый Центр Russian Quantum Center

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Open RQC colloquium. Lecture 26

The Twenty Sixth lecture Towards light-matter interface for the NV center in diamond in "Open RQC colloquium" will be held in National University of Science and Technology MISIS (Moscow, Leninskiy prospekt 4) lecture hall № Б-536 (5th floor), on 9th of June 2017 at 10:00 a.m by Alexey Akimov, Assistant Professor, Texas A&M University and Quantum Simulators and Integrated Photonics group lead in Russian Quantum Center.


The nitrogen-vacancy (NV) center in diamond is attracting a lot of attention in quantum information processing community. A spin system in the NV center is positioned in a clean and well-controlled environment. As a result, it shows outstanding performance as quantum memory, even at room temperature, allows for spin control with a single shot optical readout, and offers a possibility of building quantum registers on a single NV center. At low temperature, the NV centers have narrow optical transitions, which enable interfacing between optical photons and the NV center spin states. Recently, the entanglement of two independent NV centers has been demonstrated. This makes the NV center a promising candidate for realization of quantum repeaters. Moreover, the NV centers could be used as sensitive elements of detectors of magnetic or electric fields, temperature etc. For all of these applications collection of the light emitted by the NV center is a crucial point. Recent developments in the field of metamaterials allowed creating hyperbolic metamaterials which may provide an efficient interface for coupling light into and out of the NV centers and, in particular, enable a single photon source based on NV. In this work, I will present our work on using CMOS-compatible hyperbolic metamaterials and optical fibers to construct efficient single photon sources and sensing elements using NV centers in diamond.


Alexey received his BS, MS, and PhD degrees from Moscow Institute for Physics and Technology in 1998, 2000, and 2003, respectively. In 1997 he started working in the laboratory for active media at the Lebedev Physical Institute of the Russian Academy of Sciences. His research was focused on the narrow optical resonances in hot and laser-cooled atoms and their applications to metrology. In 2006-2012 he was a visiting scholar in Misha Lukin’s group in Physics Department of Harvard University, where he worked on a number of research projects related to surface plasmons, quantum dots, and NV centers in diamond. The main focus of this activity was light-spin interfaces and solid state nanophotonics. In 2010-2012 he was the acting director of the Russian Quantum Center (RQC) at Skolkovo. He then assumed a Principal Investigator position at the RQC and conducted research in the fields of cold atoms and solid state spin systems. In October 2015 he joined the Physics Department of Texas A&M University as an Assistant Professor.

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