• 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., (


Department of Physics, KAIST

번호 날짜 장소 제목
306 2016-07-08 14:00  #1323(E6-2. 1st fl.)  Electronic quasiparticles in the quantum dimer model
305 2022-07-14 13:30  E6 #1501 & Zoom  Electronic structure and anomalous transport properties of topological materials by first principle calculation
304 2022-07-14 14:15  E6 #1501 & Zoom  Hund and electronic correlations in ruthenium-based systems
303 2022-07-14 15:00  E6 #1501 & Zoom  Pure two-dimensional quantum electron liquid and its phase transition
302 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
301 2019-07-10 16:00  Academic Cltural Complex (E9) 5층 스카이라운지  Public Lectures file
300 2023-07-10 16:00  E6, #1323  Electronic structures of magnetic and non-magnetic ordering in d- and f-electrons systems
299 2024-07-10 16:00  E6-2 #2502  [High Energy Theory Seminar] The Weak Gravity Conjecture in Perturbative String Theory
298 2023-07-11 11:00  E6-2, #1323  Ordered phases, non-Fermi liquid, and quantum criticality driven by entanglement between multipoles and conduction electrons
297 2023-07-12 11:00  E6-2, #1323  Study of spin-1/2 antiferromagnetic kagome Heisenberg model by symmetric projected entangled simplex states
296 2018-07-13 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Loop Induced Single Top Partner Production and Decay at the LHC
295 2023-07-18 11:00  E6-2, #1323  Non-Hermitian Casimir Effect of Magnons
294 2023-07-19 16:00  E6-2, #1323  [High-Energy Theory Seminar]Deriving the Simplest Gauge-String Duality
293 2020-07-02 16:00  Zoom Video Conference Seminar  An irreversible qubit-photon coupling for the detection of itinerant microwave photons file
292 2018-07-02 15:00  Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus  High Precision Magnetic Field Measurement for the Muon g-2 Experiment file
291 2023-07-20 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP Seminar] Cosmoparticle Physics of Dark Universe file
290 2019-07-21 12:00  E6-2,# 5318  Challenges and Opportunities in Theoretical Particle Physics 2019 file
289 2022-07-21 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Quintessential axions file
288 2024-07-22 14:00  E6-2 #3441  Nonthermal electronic orders in photo-doped Mott insulators
287 2019-07-25 16:00  E6-2, #1323  Band topology of twisted bilayer graphene file