Entanglement of light and multiple vibrations is a key resource for multichannel quantum information processing and memory. However, entanglement generation is generally suppressed, or even fully destroyed, by the dark-mode (DM) effect induced by the coupling of multiple degenerate or near-degenerate vibrational modes to a common optical mode. Here we propose how to generate optomechanical entanglement via DM breaking induced by synthetic magnetism. We find that at nonzero temperature, light and vibrations are separable in the DM-unbreaking regime but entangled in the DM-breaking regime. Remarkably, the threshold thermal phonon number for preserving entanglement in our simulations has been observed to be up to 3 orders of magnitude stronger than that in the DM-unbreaking regime. The application of the DM-breaking mechanism to optomechanical networks can make noise-tolerant entanglement networks feasible. These results are quite general and can initiate advances in quantum resources with immunity against both dark modes and thermal noise.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.129.063602 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Quantum collective motion of macroscopic mechanical oscillators.
Science
December 2024
Institute of Physics, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland.
Collective phenomena arise from interactions within complex systems, leading to behaviors absent in individual components. Observing quantum collective phenomena with macroscopic mechanical oscillators has been impeded by the stringent requirement that oscillators be identical. We demonstrate the quantum regime for collective motion of = 6 mechanical oscillators, a hexamer, in a superconducting circuit optomechanical platform.
View Article and Find Full Text PDFTunable on-chip optical traps for levitating particles based on single-layer metasurface.
Nanophotonics
July 2024
University of Southampton, Southampton, UK.
Optically levitated multiple nanoparticles have emerged as a platform for studying complex fundamental physics such as non-equilibrium phenomena, quantum entanglement, and light-matter interaction, which could be applied for sensing weak forces and torques with high sensitivity and accuracy. An optical trapping landscape of increased complexity is needed to engineer the interaction between levitated particles beyond the single harmonic trap. However, existing platforms based on spatial light modulators for studying interactions between levitated particles suffered from low efficiency, instability at focal points, the complexity of optical systems, and the scalability for sensing applications.
View Article and Find Full Text PDFOptoacoustic Entanglement in a Continuous Brillouin-Active Solid State System.
Phys Rev Lett
November 2024
Max Planck Institute for the Science of Light, Staudtstraße 2, D-91058 Erlangen, Germany.
Entanglement in hybrid quantum systems comprised of fundamentally different degrees of freedom, such as light and mechanics, is of interest for a wide range of applications in quantum technologies. Here, we propose to engineer bipartite entanglement between traveling acoustic phonons in a Brillouin active solid state system and the accompanying light wave. The effect is achieved by applying optical pump pulses to state-of-the-art waveguides, exciting a Brillouin Stokes process.
View Article and Find Full Text PDFLithium niobate on insulator: an emerging nanophotonic crystal for optimized light control.
Beilstein J Nanotechnol
November 2024
Centre for Quantum Engineering, Research and Education (CQuERE), TCG-Centres for Research and Education in Science and Technology (TCG-CREST), Sector V, Salt Lake, Kolkata-700091, India.
Lithium niobate (LN) stands out as a versatile nonlinear optoelectronic material which can be directly applied in tunable modulators, filters, parametric amplifiers, and photonic integrated circuits. Recently, LN photonic crystals have garnered attention as a compelling candidate for incorporation into photonic integrated circuits, showcasing their potential in advancing the field. Photonic crystals possess a widely acknowledged capability to manipulate the transmission of light modes, similar to how nanostructures have been utilized to regulate electron-related phenomena.
View Article and Find Full Text PDFReciprocal or nonreciprocal bimolecular interface and quantum entanglement.
J Phys Condens Matter
October 2024
Shiyan Key Laboratory of Electromagnetic Induction and Energy Saving Technology, Hubei key laboratory of Energy Storage and Power Battery and Hubei Key Laboratory of Automotive Power Train and Electronic Control, Hubei University of Automotive Technology, Shiyan 442002, People's Republic of China.
Article Synopsis
- The study focuses on a hybrid system that combines a plasmonic cavity and different molecular vibration modes, offering strong optomechanical-like interactions.
- This system serves as a quantum data bus, enabling functionalities like reciprocal and non-reciprocal information transmission between molecules.
- It also allows for the engineering of steady-state quantum entanglement through a dissipative method, potentially broadening the applications of quantum technology beyond traditional optomechanical systems.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!