Brillouin optomechanics in the quantum ground state
- URL: http://arxiv.org/abs/2303.04677v1
- Date: Wed, 8 Mar 2023 15:56:52 GMT
- Title: Brillouin optomechanics in the quantum ground state
- Authors: H. M. Doeleman, T. Schatteburg, R. Benevides, S. Vollenweider, D.
Macri and Y. Chu
- Abstract summary: Bulk acoustic wave (BAW) resonators are attractive as intermediaries in a microwave-to-optical transducer.
In this work, we demonstrate ground state operation of a Brillouin optomechanical system composed of a quartz BAW resonator inside an optical cavity.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Bulk acoustic wave (BAW) resonators are attractive as intermediaries in a
microwave-to-optical transducer, due to their long coherence times and
controllable coupling to optical photons and superconducting qubits. However,
for an optomechanical transducer to operate without detrimental added noise,
the mechanical modes must be in the quantum ground state. This has proven
challenging in recent demonstrations of transduction based on other types of
mechanical resonators, where absorption of laser light caused heating of the
phonon modes. In this work, we demonstrate ground state operation of a
Brillouin optomechanical system composed of a quartz BAW resonator inside an
optical cavity. The system is operated at $\sim$200 mK temperatures inside a
dilution refrigerator, which is made possible by designing the system so that
it self-aligns during cooldown and is relatively insensitive to mechanical
vibrations. We show optomechanical coupling to several phonon modes and perform
sideband asymmetry thermometry to demonstrate a thermal occupation below 0.5
phonons at base temperature. This constitutes the heaviest ($\sim$494 $\mu$g)
mechanical object measured in the quantum ground state to date. Further
measurements confirm a negligible effect of laser heating on this phonon
occupation. Our results pave the way toward low-noise, high-efficiency
microwave-to-optical transduction based on BAW resonators.
Related papers
- Near-ground state cooling in electromechanics using measurement-based
feedback and Josephson parametric amplifier [2.16066870284922]
We demonstrate the feedback cooling of a low-loss and high-stress macroscopic SiN membrane resonator.
We reach a thermal phonon number as low as 1.6, which is limited primarily by microwave-induced heating.
arXiv Detail & Related papers (2024-03-04T18:54:25Z) - Limits for coherent optical control of quantum emitters in layered
materials [49.596352607801784]
coherent control of a two-level system is among the most essential challenges in modern quantum optics.
We use a mechanically isolated quantum emitter in hexagonal boron nitride to explore the individual mechanisms which affect the coherence of an optical transition under resonant drive.
New insights on the underlying physical decoherence mechanisms reveals a limit in temperature until which coherent driving of the system is possible.
arXiv Detail & Related papers (2023-12-18T10:37:06Z) - Dissipative and dispersive cavity optomechanics with a
frequency-dependent mirror [0.0]
microcavity-based optomechanical systems are placed in the unresolved-sideband regime, preventing sideband-based ground-state cooling.
We analyze such an optomechanical system, whereby one of the mirrors is strongly frequency-dependent, i.e., a suspended Fano mirror.
We formulate a quantum-coupled-mode description that includes both the standard dispersive optomechanical coupling as well as dissipative coupling.
arXiv Detail & Related papers (2023-11-26T14:20:25Z) - Room-temperature quantum optomechanics using an ultra-low noise cavity [0.0]
We demonstrate optomechanical squeezing at room temperature in a phononic-engineered membrane-in-the-middle system.
By using a high finesse cavity whose mirrors are patterned with phononic crystal structures, we reduce cavity frequency noise by more than 700-fold.
These advances enable operation within a factor of 2.5 of the Heisenberg limit, leading to squeezing of the probing field by 1.09 dB below the vacuum fluctuations.
arXiv Detail & Related papers (2023-09-26T16:27:32Z) - Single-photon induced instabilities in a cavity electromechanical device [0.0]
nonlinear radiation-pressure interaction in Cavity-electromechanical systems could result in an unstable response of the mechanical resonator.
By using polariton modes formed by a strongly coupled flux-tunable transmon and a microwave cavity, here we demonstrate an electromechanical device and achieve a single-photon coupling rate.
Such an improvement in the single-photon coupling rate and the observations of microwave frequency combs at single-photon levels may have applications in the quantum control of the motional states and critical parametric sensing.
arXiv Detail & Related papers (2023-09-13T07:33:09Z) - An anti-maser for quantum-limited cooling of a microwave cavity [58.720142291102135]
We experimentally demonstrate how to generate a state in condensed matter at moderate cryogenic temperatures.
This state is then used to efficiently remove microwave photons from a cavity.
Such an "anti-maser" device could be extremely beneficial for applications that would normally require cooling to millikelvin temperatures.
arXiv Detail & Related papers (2023-07-24T11:12:29Z) - Quantum field heat engine powered by phonon-photon interactions [58.720142291102135]
We present a quantum heat engine based on a cavity with two oscillating mirrors.
The engine performs an Otto cycle during which the walls and a field mode interact via a nonlinear Hamiltonian.
arXiv Detail & Related papers (2023-05-10T20:27:15Z) - Phononically shielded photonic-crystal mirror membranes for cavity
quantum optomechanics [48.7576911714538]
We present a highly reflective, sub-wavelength-thick membrane resonator featuring high mechanical quality factor.
We construct a Fabry-Perot-type optical cavity, with the membrane forming one terminating mirror.
We demonstrate optomechanical sideband cooling to mK-mode temperatures, starting from room temperature.
arXiv Detail & Related papers (2022-12-23T04:53:04Z) - Quantum-limited millimeter wave to optical transduction [50.663540427505616]
Long distance transmission of quantum information is a central ingredient of distributed quantum information processors.
Current approaches to transduction employ solid state links between electrical and optical domains.
We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
arXiv Detail & Related papers (2022-07-20T18:04:26Z) - Energy-level-attraction and heating-resistant-cooling of mechanical
resonators with exceptional points [3.167554518801207]
We study the energy-level evolution and ground-state cooling of mechanical resonators under a synthetic phononic gauge field.
We propose a heating-resistant ground-state cooling based on the nonreciprocal phonon transport.
arXiv Detail & Related papers (2020-11-27T07:26:25Z) - Waveguide quantum optomechanics: parity-time phase transitions in
ultrastrong coupling regime [125.99533416395765]
We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction.
The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry.
The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
arXiv Detail & Related papers (2020-07-04T11:02:20Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.