Non-Gaussian states of multimode light generated via hybrid quantum information processing
2018.04.10 12:29
날짜 | 2018-04-11 16:00 |
---|---|
일시 | April 11 (Wed), 4:00pm |
장소 | #1323 (E6-2, 1st fl.) |
연사 | Dr. Young-Sik Ra |
Physics Seminar
“Non-Gaussian states of multimode light generated via hybrid quantum information processing”
Dr. Young-Sik Ra
Laboratoire Kastler Brossel, Paris, France
Abstract:
Optical quantum information processing can be classified into two categories depending on the way of encoding quantum information on light: one harnesses the particle nature (photon)−called discrete-variable approach−, and the other exploits the wave nature (electric field)−called continuous-variable approach. Basic nonclassical lights for the two are single photon and squeezed vacuum, respectively. Recently, a new field of study is emerging, called hybrid quantum information processing that combines the two conventional approaches to complement each other.
In this seminar, I will present generation of non-Gaussian quantum states of multimode light based on the hybrid quantum information processing. Squeezed vacuum, which is employed in the continuous-variable approach, is a Gaussian state, which can be described by moments up to the second order (i.e. variance). However, it has limitations on quantum computing and quantum communication, while single-photon subtraction used in the discrete-variable approach can provide non-Gaussian characteristics. We have implemented a single-photon subtractor compatible with multimode squeezed vacuum and generated non-Gaussian multimode quantum states. The novel quantum states of light will find applications in various quantum technologies such as distillation of entangled states, universal quantum computing, and quantum metrology.
Contact: Yongseop Kang, Administration Team (T.2599)
Department of Physics
댓글 0
번호 | 날짜 | 장소 | 제목 |
---|---|---|---|
9 | 2020-09-28 17:30 | Zoom webinar | KAIST Global Forum for Spin and Beyond(Fourth Forum) |
8 | 2015-12-09 11:00 | E4(KI Building), Connect room (2nd fl.) | Functional Imaging & Monitoring of Brain & Breast with Diffuse Light |
7 | 2015-12-09 14:00 | E6-2, #1323 | SWELLABLE COLLOIDAL PARTICLES ARE SWELL |
6 | 2023-09-18 11:00 | E6-2, #1322 | Magic polarisation trapping of polar molecules for tunable dipolar interactions |
5 | 2021-01-28 18:00 | Online Seminar | Quantum metamaterials: concept, theory, prototypes and possible applications |
4 | 2020-09-24 09:00 | Zoom Video | (CAPP/IBS)Searching for Dark Matter with a Superconducting Qubit , Cryogenic Microwave Circuit Development at the NSTU |
3 | 2024-01-26 15:00 | E6-2 #1323 | In-situ 4D-STEM studies on surface reconstruction and polarization switching of perovskite oxides |
2 | 2019-09-18 16:00 | Seminar Room #1323 | Fall 2019: Physics Seminar Serises |
1 | 2019-09-02 16:00 | Seminar Room 1501 | Fall 2019: Physics Colloquium |