title: Coherent Phonon Rabi Oscillations with a High-Frequency Carbon Nanotube Phonon Cavity.
abstract: Phonon-cavity electromechanics allows the manipulation of mechanical oscillations similar to photon-cavity systems. Many advances on this subject have been achieved in various materials. In addition, the coherent phonon transfer (phonon Rabi oscillations) between the phonon cavity mode and another oscillation mode has attracted many interest in nanoscience. Here, we demonstrate coherent phonon transfer in a carbon nanotube phonon-cavity system with two mechanical modes exhibiting strong dynamical coupling. The gate-tunable phonon oscillation modes are manipulated and detected by extending the red-detuned pump idea of photonic cavity electromechanics. The first- and second-order coherent phonon transfers are observed with Rabi frequencies 591 and 125 kHz, respectively. The frequency quality factor product fQm∼ 2 × 1012Hz achieved here is larger than kBTbase/h, which may enable the future realization of Rabi oscillations in the quantum regime.
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter , Beijing 100084, China.
authors.forename: Xin-He
authors.initials: XH
authors.lastname: Wang
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Wei-Cheng
authors.initials: WC
authors.lastname: Kong
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Guang-Wei
authors.initials: GW
authors.lastname: Deng
authors.affiliation: State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter , Beijing 100084, China.
authors.forename: Jiang-Tao
authors.initials: JT
authors.lastname: Wang
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Hai-Ou
authors.initials: HO
authors.lastname: Li
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Cao
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter , Beijing 100084, China.
authors.forename: Kai-Li
authors.initials: KL
authors.lastname: Jiang
authors.affiliation: State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter , Beijing 100084, China.
authors.forename: Xing-Can
authors.initials: XC
authors.lastname: Dai
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Guang-Can
authors.initials: GC
authors.lastname: Guo
authors.affiliation: CEMS, RIKEN , Wako-shi, Saitama 351-0198, Japan.|Physics Department, University of Michigan , Ann Arbor, Michigan 48109-1040, United States.
authors.forename: Franco
authors.initials: F
authors.lastname: Nori
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences , Hefei 230026, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China.
authors.forename: Guo-Ping
authors.identifier: 0000-0002-2179-9507
authors.initials: GP
authors.lastname: Guo
keywords: Phonon cavity; electric tuning; nanotube; phonon rabi oscillations; quantum dot; strong coupling