Strong indirect coupling between graphene-based mechanical resonators via a phonon cavity

Abstract

Mechanical resonators are promising systems for storing and manipulating information. To transfer information between mechanical modes, either direct coupling or an interface between these modes is needed. In previous works, strong coupling between different modes in a single mechanical resonator and direct interaction between neighboring mechanical resonators have been demonstrated. However, coupling between distant mechanical resonators, which is a crucial request for long-distance classical and quantum information processing using mechanical devices, remains an experimental challenge. Here, we report the experimental observation of strong indirect coupling between separated mechanical resonators in a graphene-based electromechanical system. The coupling is mediated by a far-off-resonant phonon cavity through virtual excitations via a Raman-like process. By controlling the resonant frequency of the phonon cavity, the indirect coupling can be tuned in a wide range. Our results may lead to the development of gate-controlled all-mechanical devices and open up the possibility of long-distance quantum mechanical experiments.

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Cited by in corpus (25)

• Nanomechanical Resonators: Toward Atomic Scale
• Mesoscopic physics of nanomechanical systems
• Dynamics of 2D Material Membranes
• Coherent phonon dynamics in spatially separated graphene mechanical resonators
• Strong Vibrational Coupling in Room Temperature Plasmonic Resonators
• Hexagonal Boron Nitride Phononic Crystal Waveguides
• Nonreciprocal phonon blockade
• Gate-Controlled Quantum Dots Based on Two-Dimensional Materials
• Quantum Simulations with a Trilinear Hamiltonian
• Tunable strong coupling of mechanical resonance between spatially separated FePS${}_3$ nanodrums
• Sliding nanomechanical resonators
• Phase-dependent double optomechanically induced transparency in a hybrid optomechanical cavity system with coherently mechanical driving
• How to Synthesize Exceptional Points with Three Resonators
• Mechanically-tunable bandgap closing in 2D graphene phononic crystals
• Stress-controlled frequency tuning and parametric amplification of the vibrations of coupled nanomembranes
• Realization of programmable nanomechanical lattice with both nearest-neighboring and next-nearest-neighboring couplings
• Electrically-tunable graphene nanomechanical resonators
• Strong Phonon-Cavity Coupling and Parametric Interaction in a Single Microcantilever under Ambient Conditions
• Selective cooling and squeezing in a lossy optomechanical closed loop embodying an exceptional surface
• Sideband ground-state cooling of graphene with Rydberg atoms via vacuum forces
• Quantum correlations between two distant cavity QED systems coupled by a mechanical resonator
• Nanomechanical vibrational response from electrical mixing measurements
• Mechanical dissipation by substrate-mode coupling in SiN resonators
• Tunable parametric amplification of a graphene nanomechanical resonator in the nonlinear regime
• Exploring Nonreciprocal Noise Transfer under Onsager-Casimir Symmetry in Synthetic-Field Optomechanics