Enhancement of mechanical entanglement and asymmetric steering with coherent feedback

R Peng, C Zhao, Z Yang, J Yang, L Zhou - Physical Review A, 2023 - APS
We propose a scheme to enhance entanglement and asymmetric steering between two
mechanical oscillators in an optomechanical system with coherent feedback control. In the …

Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action

L Qiu, R Sahu, W Hease, G Arnold, JM Fink - Nature Communications, 2023 - nature.com
Recent quantum technologies have established precise quantum control of various
microscopic systems using electromagnetic waves. Interfaces based on cryogenic cavity …

Coherent photo-thermal noise cancellation in a dual-wavelength optical cavity for narrow-linewidth laser frequency stabilisation

F Dawel, A Wilzewski, S Herbers, L Pelzer, J Kramer… - Optics …, 2024 - opg.optica.org
Optical resonators are used for the realisation of ultra-stable frequency lasers. The use of
high reflectivity multi-band coatings allows the frequency locking of several lasers of different …

[HTML][HTML] Absorption loss and Kerr nonlinearity in barium titanate waveguides

A Riedhauser, C Möhl, J Schading, D Caimi… - APL Photonics, 2025 - pubs.aip.org
Because of its exceptionally large Pockels coefficient, barium titanate (BaTiO 3) is a
promising material for various photonic applications at both room and cryogenic …

Coherent feedback ground state cooling of the mechanical resonator in quadratic optomechanical system assisted by an atomic ensemble

R Chang, S Zhang - Optics Express, 2024 - opg.optica.org
We propose a scheme for cooling a mechanical resonator to its ground state in a quadratic
optomechanical system, assisted by an atomic ensemble in the unresolved sideband …

Quantum Correlation Enhanced with Quantum Coherent Feedback Control in a Cavity‐magnon Hybrid System

YH Lin, YQ Lin, ZY Lin, RC Yang, HY Liu - Annalen der Physik, 2024 - Wiley Online Library
A scheme is proposed to enhance quantum correlation, including entanglement and
steering, for two magnon modes in a cavity‐magnon hybrid system through coherent …

Quantum coherent feedback control with photons

H Ding, G Zhang - IEEE Transactions on Automatic Control, 2023 - ieeexplore.ieee.org
The purpose of this article is to study two-photon dynamics induced by the coherent
feedback control of a cavity quantum electrodynamics (cavity-QED) system coupled to a …

Stationary Quantum Entanglement and Asymmetric Steering in Cavity Magnonic System with Floquet Field and Coherent Feedback

SY Guan, HF Wang, X Yi - Advanced Quantum Technologies, 2024 - Wiley Online Library
A scheme is proposed to prepare quantum entanglement and quantum steering between
two indirectly coupled microwave cavity modes within a hybrid cavity magnonic system. The …

Hexapartite coherent feedback control in four-wave mixing with a spatially structured pump

H He, K Zhang, J **g - Physical Review A, 2024 - APS
Quantum coherent feedback control (CFC) has been widely applied to prepare and
manipulate nonclassical beams. In this paper, we utilize an optical beam splitter with tunable …

Coherent feedback control for cavity optomechanical systems with a frequency-dependent mirror

L Du, J Monsel, W Wieczorek, J Splettstoesser - Physical Review A, 2025 - APS
Ground-state cooling of mechanical resonators is a prerequisite for the observation of
various quantum effects in optomechanical systems and thus has always been a crucial task …