Sungkun Hong

Sungkun Hong
Sungkun Hong
Experienced Researcher, Universität Wien

Academic background

Sep 2006 – Mar 2013  Ph.D. in Applied Physics, Harvard University, USA

Mar 1999 – Feb 2003  B.S. in Mechanical Engineering, Seoul National University, Republic of Korea

 

Current research topic (post-doc)

Pulsed Optomechanics: QND measurement of mechanical motions via optical pulses

An outstanding problem in cavity quantum optomechanics is to establish back-action evading measurement of mechanically moving objects with imprecision below standard quantum limit (SQL). Such measurement would enable quantum state tomography of mechanical states and preparation of mechanical quantum states by measurement itself. We intend to realize this quantum non-demolition (QND) measurement of mechanical states beyond SQL by using a new experimental approach. Our method uses short optical pulses to probe the instantaneous position of a mechanical oscillator, while imposing the measurement back-action only on to the conjugate momentum quadrature. In addition, we aim at demonstrating squeezed states and Heisenberg limited coherent states of mechanical oscillators.

 

Selected publications (*: equal contribution)

1.     Nanoscale magnetic imaging of a single electron spin under ambient conditions M. S. Grinolds*, S. Hong*, P. Maletinsky*, L. Luan, M. D. Lukin, R. L. Walsworth and A. Yacoby Nature Physics 9, 215-219 (2013)

2.     Nanoscale magnetometry with NV centers in diamond Sungkun Hong, Michael S. Grinolds, Linh M. Pham, David Le Sage, Lan Luan, Ronald L. Walsworth and Amir Yacoby MRS Bulletin 38, 155-161 (2013)

3.     Coherent, Mechanical control of a single electronic spin Sungkun Hong*, Michael S. Grinolds*, Patrick Maletinsky*, Ronald L. Walsworth, Mikhail D. Lukin, and Amir Yacoby Nano Letters 12, 3920-3924 (2012)

4.     A robust scanning diamond sensor for nanoscale imaging with single nitrogen-vacancy centres P. Maletinsky*, S. Hong*, M. S. Grinolds*, B. Hausmann, M. D. Lukin, R. L. Walsworth, M. Loncar, and A. Yacoby Nature Nanotechnology 7, 320-324 (2012)

5.     Quantum control of proximal spins using nanoscale magnetic resonance imaging M. S. Grinolds*, P. Maletinsky*, S. Hong*, M. D. Lukin, R. L. Walsworth, and A. Yacoby Nature Physics 7, 687-692 (2011)

6.     Nanoscale magnetic sensing with an individual electronic spin in diamond J. R. Maze, P. L. Stanwix, J. S. Hodges, S. Hong, J. M. Taylor, P. Cappellaro, L. Jiang, M. V. Gurudev Dutt, E. Togan, A. S. Zibrov, A. Yacoby, R. L. Walsworth, and M. D. Lukin Nature 455, 644-647 (2008)

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