Betreff: Announcement solid state physics seminar, 31. July, 16:15h
Datum: 30. Juli 2012 10:56:45 MESZ
Dear all,
Please be informed about the following solid state physics seminar:
Date: Tuesday, 31.07.2012, 16:15h
Location: HPF G6
Speaker: Peter Maurer, Harvard University
Title: Quantum control of diamond defects for quantum information and bio-imaging
Abstract:
In recent years, much attention has focused on the quantum control of nanoscale systems under ambient condition; these efforts span a variety of goals ranging from quantum metrology to quantum communication and computation. In this talk, I will focus on recent efforts toward the realization of these goals by taking advantage of the spin properties of individual Nitrogen Vacancy (NV) color centers in diamond. I will begin by introducing a novel technique, which allows for the detection and manipulation of individual spins with resolution beyond the diffraction limit [1]; this constitutes an important building block for an NV-based quantum processor [2] and opens the door to nanoscale bio-imaging/sensing. I will then discuss the extraordinary readout and coherence properties of NV-based quantum registers, demonstrating single shot readout and storage times well beyond a second at room temperature [3]. The ability to store quantum information on a macroscopic time scale in small, portable devices is an important step towards the practical realization of "quantum money" type encryption primitives.
[1] Maurer et. al. - Far-field optical imaging and manipulation of individual spins with nanoscale resolution - Nature Physics 6 - 912 to 918 - Sep. 2010
[2] Yao et. al. - Scalable architecture for a room temperature solid-state quantum information processor - Nature Communication 3 - 800 - Mar. 2012
[3] Maurer et. al. - Room temperature quantum bit memory exceeding one second - Science 8 - 1283 - Jun. 2012
Host: Andreas Wallraff
You are cordially invited!
kind regards
--
Gaby Strahm
ETH Zürich
Solid State Physics Laboratory
Schafmattstr. 16, HPF F7
8093 Zürich
Switzerland
Phone: +41 44 633 23 35
Fax: +41 44 633 10 72
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