Phonons and polariton-like particles in trapped ions for quantum computation and quantum simulation
2018.06.12 14:21
장소 | E6-2, 2nd fl. #2502 |
---|---|
일시 | June 14 (THU), 10:00 AM |
연사 | Prof. Kenji Toyoda |
Physics Seminar
“Phonons and polariton-like particles in trapped ions for quantum computation and quantum simulation”
Osaka University
Phonons are ubiquitous quantum-mechanical excitations representing the quantized energies of vibrational modes. They are becoming more and more actively controled and used in such areas as phonon engineering and optomechanical systems. In the study of trapped ions for quantum information processing, as well, phonons has taken essential roles. They have been traditionally used to mediate information between internal-state qubits to realize quantum gates. On the other hand, they have certain useful properties, in their own right, for use as independent degrees of freedom. Phonons obey the Bose-Einstein statistics, and by adjusting trap parameters they can take global as well as local characteristics. These properties can be utilized for such areas as quantum computation and quantum simulation.
In this talk, I would like to present three topics related to phonons and characteristic motions in trapped ions. The first one is experiments on two-phonon interference (the Hong-Ou-Mandel effect) and prospects toward realization of phonon-based quantum computing using the interference of multiple phonons. The second topic is the quantum simulation of interacting particles in solid-state materials based on phonon-based quasiparticles. When ions are illuminated with optical pulses resonant to vibrational sidebands, quasiparticles called phonon-polaritons are formed, which can be used for quantum simulation that catches the basic characteristics of interacting electrons in solids. The last topic is the study of a ''quantum rotor'' made from a three-ion crystal in a triangular shape. The superpositions of optically distiguishable two orientations of the crystal are realized by cooling its rotational mode to the ground state. Furthermore, their dependence to an applied static magnetic field, due to the Aharonov-Bohm effect, is observed.
Contact: EunJung Jo, Physics Dept., (jojo@kaist.ac.kr)
Department of Physics, KAIST
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
172 | Jun. 1(Wed) 10:30 AM | BK21 Conference Room (#1318, E6-2) | Dr. Noriaki Horiuchi, Editor, Nature Photonics | Welcome to Nature Photonics |
171 | Jun. 10 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Seunghun Lee(Department of Physics, Pukyong National University) |
Combinatorial strategy for condensed matter physics: study on rare earth hexaborides thin films
![]() |
170 | Jun. 10 (Fri.), 04:00 PM | E6-2. 1st fl. #1323 | Dr. Sanghoon Kim(Department of Physics, University of Ulsan) |
Fe5GeTe2의 나선형 자성특성과 자기저항의 전류밀도 의존성 연구
![]() |
169 | Jun. 10 (Fri.), 11:00 AM | Online seminar | Dr. Yoon Jang Chung(Laboratory for Physical Sciences, University of Maryland) |
Record-quality two-dimensional electron systems
![]() |
168 | Jun. 11 (Fri.), 02:30 PM | Online seminar | Dr. Jin Woong Cha(KRISS) |
Engineering sound waves and vibrations in multi-mode nanomechanical systems
![]() |
167 | Jun. 11 (Fri.), 04:00 PM | Online seminar | Dr. Keun Su Kim(Yonsei University) |
Pseudogap in surface-doped black phosphorus
![]() |
166 | Jun. 14 (Tue) 4PM | Seminar Room (#2502, 2nd fl.) | Young-Sik Ra, Université Pierre et Marie Curie | Photonic quantum network based on multimode squeezed vacuums and single-photon subtraction |
165 | Jun. 16 (Thu) 4PM | #1323(E6-2, 1st fl.) | Hyochul Kim, Samsung Advanced Institute of Technology | Quantum information processing using quantum dots and photonic crystal cavities |
164 | Jun. 18 (MON), 10:00 AM | E6-2. 2nd fl. #2502 | Dr. Thibault VOGT |
Rydberg electromagnetically induced transparency and microwave-to-optical conversion using Rydberg atoms
![]() |
163 | Jun. 2 (Fri.), 02:30 PM | E6-2. 1st fl. #1323 | Dr. Euyheon Hwang(황의헌) |
Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal)
![]() |
162 | Jun. 2 (Fri.), 4:00 PM | #1323 (E6-2. 1st fl.) | Dr. Sang Wook Kim |
Maxwell's demon in quantum wonderland
![]() |
» | June 14 (THU), 10:00 AM | E6-2, 2nd fl. #2502 | Prof. Kenji Toyoda |
Phonons and polariton-like particles in trapped ions for quantum computation and quantum simulation
![]() |
160 | June 14, 2016 (Tue) 3PM | #1323 (E6-2 1st fl.) | Prof. Seungyong Hahn, Florida State University | No-Insulation High Temperature Superconductor Magnet Technology for Compact, Reliable, and Low-Cost High Field DC Magnets |
159 | June 17 (Mon.), 10:30 AM | #1323, E6-2 | Dr. See-Hun Yang |
Chiral Spintronics
![]() |
158 | June 22 (Fri.), 04:00 PM | #1323, E6-2 | Dr. Daniel Sando |
Tuning functional properties of BiFeO3 films using strain and growth chemistry
![]() |
157 | June 22 (Fri.), 04:00 PM | #1323, E6-2 | Dr. Daniel Sando |
Tuning functional properties of BiFeO3 films using strain and growth chemistry
![]() |
156 | June 23th (Thur), 11:00 | E6 Room(#1322) | Sun Yool Park(Joint Institute for Laboratory Astrophysics (JILA) & University of Colorado) |
JILA’s search for the electron’s Electric Dipole Moment (eEDM) to probe physics beyond the standard model
![]() |
155 | June 27 (Thu), 2:00 PM | #2502, E6-2 | Hyun-Yong Lee |
Gapless Kitaev Spin Liquid to Loop and String Gases
![]() |
154 | June 27 (Wed.), 13:30 PM | #1323, E6-2 | Dr. Jung Sik Park |
Magnetic reversal of artificial spin ice
![]() |
153 | June 28 (Fri.), 13:30 PM | #1323, E6-2 | Dr. Yusuke Kozuka |
Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures
![]() |