Details
| Original language | English |
|---|---|
| Pages (from-to) | 174-179 |
| Number of pages | 6 |
| Journal | Science |
| Volume | 369 |
| Issue number | 6500 |
| Publication status | Published - 10 Jul 2020 |
Abstract
Engineering strong interactions between quantum systems is essential for many phenomena of quantum physics and technology. Typically, strong coupling relies on short-range forces or on placing the systems in high-quality electromagnetic resonators, which restricts the range of the coupling to small distances. We used a free-space laser beam to strongly couple a collective atomic spin and a micromechanical membrane over a distance of 1 meter in a room-temperature environment. The coupling is highly tunable and allows the observation of normal-mode splitting, coherent energy exchange oscillations, two-mode thermal noise squeezing, and dissipative coupling. Our approach to engineering coherent long-distance interactions with light makes it possible to couple very different systems in a modular way, opening up a range of opportunities for quantum control and coherent feedback networks.
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In: Science, Vol. 369, No. 6500, 10.07.2020, p. 174-179.
Research output: Contribution to journal › Article › Research
}
TY - JOUR
T1 - Light-mediated strong coupling between a mechanical oscillator and atomic spins 1 meter apart
AU - Karg, Thomas M
AU - Gouraud, Baptiste
AU - Ngai, Chun Tat
AU - Schmid, Gian-Luca
AU - Hammerer, Klemens
AU - Treutlein, Philipp
N1 - Copyright © , American Association for the Advancement of Science.
PY - 2020/7/10
Y1 - 2020/7/10
N2 - Engineering strong interactions between quantum systems is essential for many phenomena of quantum physics and technology. Typically, strong coupling relies on short-range forces or on placing the systems in high-quality electromagnetic resonators, which restricts the range of the coupling to small distances. We used a free-space laser beam to strongly couple a collective atomic spin and a micromechanical membrane over a distance of 1 meter in a room-temperature environment. The coupling is highly tunable and allows the observation of normal-mode splitting, coherent energy exchange oscillations, two-mode thermal noise squeezing, and dissipative coupling. Our approach to engineering coherent long-distance interactions with light makes it possible to couple very different systems in a modular way, opening up a range of opportunities for quantum control and coherent feedback networks.
AB - Engineering strong interactions between quantum systems is essential for many phenomena of quantum physics and technology. Typically, strong coupling relies on short-range forces or on placing the systems in high-quality electromagnetic resonators, which restricts the range of the coupling to small distances. We used a free-space laser beam to strongly couple a collective atomic spin and a micromechanical membrane over a distance of 1 meter in a room-temperature environment. The coupling is highly tunable and allows the observation of normal-mode splitting, coherent energy exchange oscillations, two-mode thermal noise squeezing, and dissipative coupling. Our approach to engineering coherent long-distance interactions with light makes it possible to couple very different systems in a modular way, opening up a range of opportunities for quantum control and coherent feedback networks.
UR - http://www.scopus.com/inward/record.url?scp=85087818248&partnerID=8YFLogxK
U2 - 10.1126/science.abb0328
DO - 10.1126/science.abb0328
M3 - Article
C2 - 32381593
VL - 369
SP - 174
EP - 179
JO - Science
JF - Science
SN - 0036-8075
IS - 6500
ER -