On-chip distribution of quantum information using traveling phonons
arXiv:2204.05066 · doi:10.1126/sciadv.add2811
Abstract
Distributing quantum entanglement on a chip is a crucial step towards realizing scalable quantum processors. Using traveling phonons - quantized guided mechanical wavepackets - as a medium to transmit quantum states is currently gaining significant attention, due to their small size and low propagation speed compared to other carriers, such as electrons or photons. Moreover, phonons are highly promising candidates to connect heterogeneous quantum systems on a chip, such as microwave and optical photons for long-distance transmission of quantum states via optical fibers. Here, we experimentally demonstrate the feasibility of distributing quantum information using phonons, by realizing quantum entanglement between two traveling phonons and creating a time-bin encoded traveling phononic qubit. The mechanical quantum state is generated in an optomechanical cavity and then launched into a phononic waveguide in which it propagates for around two hundred micrometers. We further show how the phononic, together with a photonic qubit, can be used to violate a Bell-type inequality.
References in corpus (36)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- The Quantum Internet
- Cavity Optomechanics
- Long-distance quantum communication with atomic ensembles and linear optics
- Laser cooling of a nanomechanical oscillator into its quantum ground state
- Optomechanically induced transparency
- Bidirectional and efficient conversion between microwave and optical light
- Interfacing spin qubits in quantum dots and donors - hot, dense and coherent
- Remote quantum entanglement between two micromechanical oscillators
- Quantum transduction of optical photons from a superconducting qubit
- Non-classical correlations between single photons and phonons from a mechanical oscillator
- Coherent optical wavelength conversion via cavity-optomechanics
- Quantum acoustics with superconducting qubits
- Phonon-mediated quantum state transfer and remote qubit entanglement
- Electrons surfing on a sound wave as a platform for quantum optics with flying electrons
- On-demand single-electron transfer between distant quantum dots
- Optimized optomechanical crystal cavity with acoustic radiation shield
- Hybrid quantum devices and quantum engineering
- Efficient bidirectional piezo-optomechanical transduction between microwave and optical frequency
- Microwave-to-optics conversion using a mechanical oscillator in its quantum groundstate
- Hanbury Brown and Twiss interferometry of single phonons from an optomechanical resonator
- An optomechanical Bell test
- Coupling a Surface Acoustic Wave to an Electron Spin in diamond via a Dark State
- A quantum memory at telecom wavelengths
- Cavity piezo-mechanics for superconducting-nanophotonic quantum interface
- Proposal for entangling remote micromechanical oscillators via optical measurements
- Heralded Generation and Detection of Entangled Microwave--Optical Photon Pairs
- Converting microwave and telecom photons with a silicon photonic nanomechanical interface
- A single-mode phononic wire
- Quantum communication with itinerant surface acoustic wave phonons
- Surface acoustic wave unidirectional transducers for quantum applications
- Quantum erasure using entangled surface acoustic phonons
- Ultra-low-noise Microwave to Optics Conversion in Gallium Phosphide
- Non-classical mechanical states guided in a phononic waveguide
- Compact embedded device for lock-in measurements and experiment active control
- Gallium phosphide as a piezoelectric platform for quantum optomechanics
Cited by in corpus (12)
- Developing a platform for linear mechanical quantum computing
- Diamond Integrated Quantum Photonics: A Review
- Perspectives on high-frequency nanomechanics, nanoacoustics, and nanophononics
- Optomechanical ring resonator for efficient microwave-optical frequency conversion
- Optomechanical generation of coherent GHz vibrations in a phononic waveguide
- Deterministic multi-phonon entanglement between two mechanical resonators on separate substrates
- Mechanically-tunable bandgap closing in 2D graphene phononic crystals
- Multimode Phonon-Polaritons in Lead-Halide Perovskites in the Ultrastrong Coupling Regime
- Chemical potential and variable number of particles control the quantum state: Quantum oscillators as a showcase
- Hybrid spin-phonon architecture for scalable solid-state quantum nodes
- Bayesian optimization of non-classical optomechanical correlations
- Time-resolved spectral diffusion of a multimode mechanical memory