visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2018-06-18 10:00 
일시 Jun. 18 (MON), 10:00 AM 
장소 E6-2. 2nd fl. #2502 
연사 Dr. Thibault VOGT 

Physics Seminar

 

 

Rydberg electromagnetically induced transparency and microwave-to-optical conversion using Rydberg atoms

 

 Dr. Thibault VOGT  

Centre for Quantum Technology, National University of Singapore

 

Jun. 18 (MON), 10:00 AM

E6-2. 2nd fl. #2502

 

The very large transition dipole moments of Rydberg atoms are responsible for strong long-range dipole-dipole interactions as well as very large couplings to external fields. Because of this property, Rydberg atoms have found direct applications for quantum sensing, quantum simulation, and non-linear optics at the few-photons level. I will describe a few examples realized in the Rydberg atom group at CQT.

In the first part of the talk, I will present our recent demonstration of coherent microwave-to-optical conversion via frequency mixing in Rydberg atoms [1]. In contrast to other physical systems being explored, our scheme requires no cavity and allows for free-space and broadband conversion due to the strong coupling of microwaves to Rydberg transitions. This result is promising for future quantum communication networks, as broadband interconversion of microwave and optical fields will be essential for connecting superconducting qubits and photonic qubits. I will discuss the recent strategies that we have developed for improving the efficiency of the conversion, which include the demonstration of three-photon electromagnetically induced transparency (EIT), and collinear frequency mixing [2,3].

In the second part, I will present our long-term goal of demonstrating spatially resolved imaging of Rydberg atoms, using Rydberg EIT in the presence of long-range dipole-dipole interactions. I will describe diverse characterizations of the effect of interactions on Rydberg electromagnetically induced transparency, and show that Lévy statistics describes well this many-body system [4,5].

[1] Han, J., Vogt, T., Gross, C., Jaksch, D., Kiffner, K., and Li, W. Coherent microwave-to-optical conversion via six-wave mixing in Rydberg atoms, Phys. Rev. Lett. 120, 093201 (2018)

[2] Vogt, T., Gross, C., Gallagher, T. F., and Li, W., Microwave-assisted Rydberg Electromagnetically induced transparency, arXiv:1802.00529, accepted for publication in Opt. Lett. (2018)

[3] Vogt, T., Gross, C., Han, J., and Li, W., Efficient microwave-to-optical conversion using Rydberg atoms, under preparation (2018)

[4] Han, J., Vogt, T., and Li, W., Spectral shift and dephasing of electromagnetically induced transparency in an interacting Rydberg gas, Phys. Rev. A 94, 043806 (2016)

[5] Vogt, T., Han, J., Thiery, A., and Li, W., Lévy statistics of interacting Rydberg gases, Phys. Rev. A 95, 053418 (2017)

 

Contact: EunJung Jo, Physics Dept., (jojo@kaist.ac.kr)

 

Department of Physics, KAIST

번호 날짜 장소 제목
307 2023-10-11 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP seminar] Particle Physics with Neutrinos file
306 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file
305 2023-06-01 16:00  E6-2, #5301  Hall viscosity and topological phenomena
304 2021-03-25 16:00  Online Seminar (Zoom)  Search for dark matter axion with Rydberg atoms file
303 2016-08-04 14:30  KAIST Natural Science Building (E6-5), EDU 3.0 Room(1st fl.)  Relational Logic (with applications to Quantum Mechanics, String Theory, Cosmology, Neutrino Oscillations, Statistical Mechanics)
302 2022-03-25 11:00  E6-1 #1323  (응집물리 세미나) Hund's metallicity in ruthenate systems file
301 2019-08-22 16:00  #1323, E6-2  Physics and Applications in Nanoelectronics and Nonomechanics file
300 2020-12-09 10:00  Zoom  Searching for the QCD axion with the ARIADNE experiment file
299 2022-08-08 14:00  E6-2 #2502  Classical Shadow Tomography for Analog Quantum Simulators
298 2022-09-21 10:30  E6-1 #1501  [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT) file
297 2019-08-19 10:00  Rm. 1322, E6-2  Tutorials on Multimode Quantum Optics in the Continuous Variable Regime file
296 2016-10-17 11:00  #1323,(E6-2, 1st fl.)  IMS and examples of the studies on optoelectronic materials
295 2020-11-26 16:00  Online(Zoom)  2020 가을학기 광학분야 특별세미나(Light Engineering Beyond the Diffraction Limit)
294 2024-01-24 15:00  E6-2 #1323  Determination of single molecule loading rate during mechanotransduction file
293 2020-12-11 14:30  online  Antisymmetric interlayer exchange coupling in magnetic multilayers
292 2023-01-09 16:00  E6-2 #1323  Non-Hermitian Hopf-bundle Matter. Moon Jip Park (IBS-PCS)
291 2023-08-23 16:00  E6-2, #1322  [High Energy Theory Seminar] A spacetime tensor network for AdS3/CFT2
290 2022-04-13 10:30  E6 #1323/zoom  Harnessing topology and correlations from singularities in 3d-kagome metals
289 2019-01-23 16:00  Rm. C303, Creation Hall (3F), Munji Campus  Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
288 2023-06-22 16:00  E6-2,1323  [High Energy Physics Seminar] The Branes Behind Generalized Symmetry Operators