Generation of Large Amplitude Phonon States in Quantum Acoustics
arXiv:2312.13948 · doi:10.1038/s41467-025-61237-8
Abstract
The development of quantum acoustics has enabled the cooling of mechanical objects to their quantum ground state, generation of mechanical Fock-states, and Schrodinger cat states. Such demonstrations have made mechanical resonators attractive candidates for quantum information processing, metrology, and macroscopic tests of quantum mechanics. However, generating large-amplitude phonon states in quantum acoustic systems has been elusive. In this work, a single superconducting qubit coupled to a high-overtone bulk acoustic resonator is used to generate a large phonon population in an acoustic mode of a high-overtone resonator. We observe extended ringdowns of the qubit, confirming the generation of a large amplitude phonon state, and also observe an upper threshold behavior, a consequence of phonon quenching predicted by our model. This work provides a key tool for generating arbitrary phonon states in circuit quantum acoustodynamics, which is important for fundamental and quantum information applications.
arXiv comment21 pages, 14 Figures
References in corpus (24)
- Circuit Quantum Electrodynamics
- A Quantum Engineer's Guide to Superconducting Qubits
- AC-Stark Shift and Dephasing of a Superconducting Qubit Strongly Coupled to a Cavity Field
- Qubit-photon interactions in a cavity: Measurement induced dephasing and number splitting
- Resolving magnon number states in quantum magnonics
- Creation and control of multi-phonon Fock states in a bulk acoustic wave resonator
- High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity
- Schrödinger cat states of a 16-microgram mechanical oscillator
- Hardware-efficient quantum random access memory with hybrid quantum acoustic systems
- On-chip quantum interference of a superconducting microsphere
- Nonlinear multi-frequency phonon lasers with active levitated optomechanics
- Parity measurement in the strong dispersive regime of circuit quantum acoustodynamics
- A perspective on hybrid quantum opto- and electromechanical systems
- Quantum to Classical Transition in a Single-Ion Laser
- Single-artificial-atom lasing using a voltage-biased superconducting charge qubit
- Macroscopic quantum test with bulk acoustic wave resonators
- Superconducting NbTiN Thin Films with Highly Uniform Properties over a 100 mm diameter Wafer
- Non-classical mechanical states guided in a phononic waveguide
- A phonon laser in the quantum regime
- Superconducting electro-mechanics to test Diósi-Penrose effects of general relativity in massive superpositions
- Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
- Multiphonon transitions in a quantum electromechanical system
- Coupling high-overtone bulk acoustic wave resonators via superconducting qubits
- Decoherence of surface phonons in a quantum acoustic system