A Superconducting Single-Atom Phonon Laser
- URL: http://arxiv.org/abs/2312.13948v1
- Date: Thu, 21 Dec 2023 15:37:55 GMT
- Title: A Superconducting Single-Atom Phonon Laser
- Authors: C.A. Potts, W.J.M. Franse, V.A.S.V. Bittencourt, A. Metelmann, G.A.
Steele
- Abstract summary: We experimentally demonstrate a direct quantum-acoustic equivalent of a single-atom laser.
A single superconducting qubit coupled to a high-overtone bulk acoustic resonator is used to drive the onset of phonon lasing.
We observe the absence of a sharp lower lasing threshold and characteristic upper lasing threshold, unique predictions of single-atom lasing.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- 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 tests
of quantum gravity theories. Here, we experimentally demonstrate a direct
quantum-acoustic equivalent of a single-atom laser. A single superconducting
qubit coupled to a high-overtone bulk acoustic resonator is used to drive the
onset of phonon lasing. We observe the absence of a sharp lower lasing
threshold and characteristic upper lasing threshold, unique predictions of
single-atom lasing. Lasing of an object with an unprecedented 25 ug mass
represents a new regime of laser physics and provides a foundation for
integrating phonon lasers with on-chip devices.
Related papers
- Quantum error mitigation for Fourier moment computation [49.1574468325115]
This paper focuses on the computation of Fourier moments within the context of a nuclear effective field theory on superconducting quantum hardware.
The study integrates echo verification and noise renormalization into Hadamard tests using control reversal gates.
The analysis, conducted using noise models, reveals a significant reduction in noise strength by two orders of magnitude.
arXiv Detail & Related papers (2024-01-23T19:10:24Z) - Quantum data learning for quantum simulations in high-energy physics [55.41644538483948]
We explore the applicability of quantum-data learning to practical problems in high-energy physics.
We make use of ansatz based on quantum convolutional neural networks and numerically show that it is capable of recognizing quantum phases of ground states.
The observation of non-trivial learning properties demonstrated in these benchmarks will motivate further exploration of the quantum-data learning architecture in high-energy physics.
arXiv Detail & Related papers (2023-06-29T18:00:01Z) - Schr\"odinger cat states of a 16-microgram mechanical oscillator [54.35850218188371]
The superposition principle is one of the most fundamental principles of quantum mechanics.
Here we demonstrate the preparation of a mechanical resonator with an effective mass of 16.2 micrograms in Schr"odinger cat states of motion.
We show control over the size and phase of the superposition and investigate the decoherence dynamics of these states.
arXiv Detail & Related papers (2022-11-01T13:29:44Z) - First design of a superconducting qubit for the QUB-IT experiment [50.591267188664666]
The goal of the QUB-IT project is to realize an itinerant single-photon counter exploiting Quantum Non Demolition (QND) measurements and entangled qubits.
We present the design and simulation of the first superconducting device consisting of a transmon qubit coupled to a resonator using Qiskit-Metal.
arXiv Detail & Related papers (2022-07-18T07:05:10Z) - Recompilation-enhanced simulation of electron-phonon dynamics on IBM
Quantum computers [62.997667081978825]
We consider the absolute resource cost for gate-based quantum simulation of small electron-phonon systems.
We perform experiments on IBM quantum hardware for both weak and strong electron-phonon coupling.
Despite significant device noise, through the use of approximate circuit recompilation we obtain electron-phonon dynamics on current quantum computers comparable to exact diagonalisation.
arXiv Detail & Related papers (2022-02-16T19:00:00Z) - Dark Exciton Giant Rabi Oscillations with no External Magnetic Field [0.0]
We study a system consisting of a semiconductor quantum dot pumped by a driving laser, and coupled to an acoustic cavity.
This kind of systems has proven to yield interesting multi-phonon phenomena, but the description of the quantum dot has been limited to a two-level system.
We highlight two outstanding features: first, we are able to create dark states excitations in the quantum dot without the usual external magnetic field needed to do so.
arXiv Detail & Related papers (2021-12-07T13:27:18Z) - Can the displacemon device test objective collapse models? [0.0]
"Displacemon" is a proposed electromechanical device consisting of a mechanical resonator flux-coupled to a superconducting qubit.
In the original proposal, the mechanical resonator was a carbon nanotube, containing $106$ nucleons.
We propose using an aluminium mechanical resonator on two larger mass scales, one inspired by the Marshall-Simon-Penrose-Bouwmeester moving-mirror proposal, and one set by the Planck mass.
arXiv Detail & Related papers (2021-10-28T14:56:30Z) - Quantum state preparation, tomography, and entanglement of mechanical
oscillators [0.0]
We use a superconducting qubit to control and read out the quantum state of a pair of nanomechanical resonators.
Our result represents a concrete step toward feedback-based operation of a quantum acoustic processor.
arXiv Detail & Related papers (2021-10-14T17:28:25Z) - Constraints on probing quantum coherence to infer gravitational
entanglement [0.0]
Gravity mediated entanglement generation so far appears to be the key ingredient for a potential experiment.
With measurements performed only on the atoms, a coherence revival test is proposed for verifying this entanglement generation.
We explore formulations of such a protocol, and specifically find that in the envisioned regime of operation with high thermal excitation, semi-classical models, where there is no concept of entanglement, also give the same experimental signatures.
arXiv Detail & Related papers (2021-06-15T15:29:35Z) - Phonon counting thermometry of an ultracoherent membrane resonator near
its motional ground state [0.0]
Generation of non-Gaussian quantum states of macroscopic mechanical objects is key to a number of challenges in quantum information science.
Here we demonstrate a technique which allows for generation and detection of a quantum state of motion by phonon counting measurements.
With an effective mass in the nanogram range, our system lends itself for studies of long-lived non-Gaussian motional states with some of the heaviest objects to date.
arXiv Detail & Related papers (2020-05-28T17:43:17Z) - Quantum Hall phase emerging in an array of atoms interacting with
photons [101.18253437732933]
Topological quantum phases underpin many concepts of modern physics.
Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system.
Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
arXiv Detail & Related papers (2020-03-18T14:56:39Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.