NOON States of Nine Quantized Vibrations in Two Radial Modes of a Trapped Ion

Zhang, Junhua1,2,3; Um, Mark1; Lv, Dingshun1; Zhang, Jing-Ning1; Duan, Lu-Ming1; Kim, Kihwan1

2018-10-18

10.1103/PhysRevLett.121.160502

PHYSICAL REVIEW LETTERS   影响因子和分区

0031-9007

1079-7114

We develop a deterministic method to generate and verify arbitrarily high NOON states of quantized vibrations (phonons), through the coupling to the internal state. We experimentally create the entangled states up to N = 9 phonons in two vibrational modes of a single trapped Yb-171(+) ion. We observe an increasing phase sensitivity of the generated NOON state as the number of phonons N increases and obtain the fidelity from the contrast of the phase interference and the population of the phonon states through the two-mode projective measurement, which are significantly above the classical bound. We also measure the quantum Fisher information of the generated state and observe Heisenberg scaling in the lower bounds of phase sensitivity as N increases. Our scheme is generic and applicable to other photonic or phononic systems such as circuit QED systems or nanomechanical oscillators, which have Jaynes-Cummings-type of interactions.

SCI ; EI

英语

NI论文

通讯

National Natural Science Foundation of China[11374178] ; National Natural Science Foundation of China[11574002] ; National Natural Science Foundation of China[11504197]

Physics

Physics, Multidisciplinary

WOS:000447627600001

AMER PHYSICAL SOC

20184305978717

Fisher information matrix ; Ions ; Oscillators (electronic) ; Phonons ; Trapped ions

Oscillators:713.2 ; Statistical Methods:922 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing 100084, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Zhang, Junhua,Um, Mark,Lv, Dingshun,et al. NOON States of Nine Quantized Vibrations in Two Radial Modes of a Trapped Ion[J]. PHYSICAL REVIEW LETTERS,2018,121(16).

Zhang, Junhua,Um, Mark,Lv, Dingshun,Zhang, Jing-Ning,Duan, Lu-Ming,&Kim, Kihwan.(2018).NOON States of Nine Quantized Vibrations in Two Radial Modes of a Trapped Ion.PHYSICAL REVIEW LETTERS,121(16).

Zhang, Junhua,et al."NOON States of Nine Quantized Vibrations in Two Radial Modes of a Trapped Ion".PHYSICAL REVIEW LETTERS 121.16(2018).