Acoustic phonon phase gates with number-resolving phonon detection

• URL: http://arxiv.org/abs/2503.03898v1
• Date: Wed, 05 Mar 2025 20:56:35 GMT
• Title: Acoustic phonon phase gates with number-resolving phonon detection
• Authors: Hong Qiao, Zhaoyou Wang, Gustav Andersson, Alexander Anferov, Christopher R. Conner, Yash J. Joshi, Shiheng Li, Jacob M. Miller, Xuntao Wu, Haoxiong Yan, Liang Jiang, Andrew N. Cleland,
• Abstract summary: Itinerant phonons in quantum acoustics, combined with superconducting qubits, offer a compelling alternative to the quantum optics approach.<n>We implement phonon phase control using the frequency-dependent scattering of phonon states from a superconducting transmon qubit.<n>The acoustic interferometer used to measure the resulting phonon phase achieves a noise-floor-limited Hong-Ou-Mandel interference visibility of 98.1%.
• Score: 36.29277627484587
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Linear optical quantum computing (LOQC) provides a compelling approach to quantum information processing, with a short list of physical requirements; however, experimental implementations have faced significant challenges. Itinerant phonons in quantum acoustics, combined with superconducting qubits, offer a compelling alternative to the quantum optics approach. Here we demonstrate key advances in the ability to manipulate and measure acoustic phonon quantum states: First, we demonstrate deterministic phase control of itinerant one- and two-phonon qubit states, measured using an acoustic Mach-Zehnder interferometer. We implement phonon phase control using the frequency-dependent scattering of phonon states from a superconducting transmon qubit. The acoustic interferometer used to measure the resulting phonon phase achieves a noise-floor-limited Hong-Ou-Mandel (HOM) interference visibility of 98.1%, representing a significant improvement over our previous demonstration. Additionally, we propose and implement a multi-phonon detection scheme that enables coherent conversion between itinerant one- and two-phonon Fock states and transmon qutrit states, transforming for example the Hong-Ou-Mandel two-phonon entangled output state $|02\rangle - |20\rangle$ into the entangled state of two transmons. The tight integration of quantum acoustics with superconducting circuits native to our implementation promises further advances, including deterministic phonon quantum gates with direct applications to quantum computing.

Related papers

• Digitized counterdiabatic quantum critical dynamics [32.73124984242397]
  We experimentally demonstrate that a digitized counterdiabatic quantum protocol reduces the number of topological defects created during a fast quench.<n>We utilize superconducting cloud-based quantum processors with up to 156 qubits.
  arXiv  Detail & Related papers  (2025-02-20T23:43:04Z)
• Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator [0.0]
  We implement a critical quantum sensor using a superconducting parametric (i.e., two-photon driven) Kerr resonator. We show that quadratic precision scaling with respect to the system size can be achieved with finite values of the Kerr nonlinearity.
  arXiv  Detail & Related papers  (2024-09-30T05:43:08Z)
• Mitigating Errors on Superconducting Quantum Processors through Fuzzy Clustering [38.02852247910155]
  A new Quantum Error Mitigation (QEM) technique uses Fuzzy C-Means clustering to specifically identify measurement error patterns. We report a proof-of-principle validation of the technique on a 2-qubit register, obtained as a subset of a real NISQ 5-qubit superconducting quantum processor. We demonstrate that the FCM-based QEM technique allows for reasonable improvement of the expectation values of single- and two-qubit gates based quantum circuits.
  arXiv  Detail & Related papers  (2024-02-02T14:02:45Z)
• 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 information processing with superconducting circuits: realizing and characterizing quantum gates and algorithms in open quantum systems [0.0]
  This thesis focuses on quantum information processing using the superconducting device. For the realization of quantum gates and algorithms, a one-step approach is used. We suggest faster and more efficient schemes for realizing $X$-rotation and entangling gates for two and three qubits.
  arXiv  Detail & Related papers  (2024-01-14T14:31:17Z)
• Measurement-induced entanglement and teleportation on a noisy quantum processor [105.44548669906976]
  We investigate measurement-induced quantum information phases on up to 70 superconducting qubits. We use a duality mapping, to avoid mid-circuit measurement and access different manifestations of the underlying phases. Our work demonstrates an approach to realize measurement-induced physics at scales that are at the limits of current NISQ processors.
  arXiv  Detail & Related papers  (2023-03-08T18:41:53Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• An integrated microwave-to-optics interface for scalable quantum computing [47.187609203210705]
  We present a new design for an integrated transducer based on a superconducting resonator coupled to a silicon photonic cavity. We experimentally demonstrate its unique performance and potential for simultaneously realizing all of the above conditions. Our device couples directly to a 50-Ohm transmission line and can easily be scaled to a large number of transducers on a single chip.
  arXiv  Detail & Related papers  (2022-10-27T18:05:01Z)
• An acousto-optic modulator based bi-frequency interferometer for quantum technology [1.3831703318753605]
  We demonstrate a high performance AOM based bi-frequency interferometer, which can realize either beating or beating free interference for single photon level quantum state. We further demonstrate applications of the interferometer in quantum technology, including bi-frequency coherent combination, frequency tuning and optical switching.
  arXiv  Detail & Related papers  (2022-10-02T01:59:46Z)
• Steering-enhanced quantum metrology using superpositions of quantum channels [0.0]
  We consider a control system that manipulates the target to pass through superpositions of either dephased or depolarized phase shifts. We implement proof-of-principle experiments for a superposition of the dephased phase shifts on a IBM Quantum computer.
  arXiv  Detail & Related papers  (2022-06-08T09:15:06Z)
• Efficient Bipartite Entanglement Detection Scheme with a Quantum Adversarial Solver [89.80359585967642]
  Proposal reformulates the bipartite entanglement detection as a two-player zero-sum game completed by parameterized quantum circuits. We experimentally implement our protocol on a linear optical network and exhibit its effectiveness to accomplish the bipartite entanglement detection for 5-qubit quantum pure states and 2-qubit quantum mixed states.
  arXiv  Detail & Related papers  (2022-03-15T09:46:45Z)
• Quantum communication with itinerant surface acoustic wave phonons [0.0]
  We demonstrate a single-phonon surface acoustic wave transmission line, which links two physically-separated qubit nodes. Using this system, precisely-shaped individual itinerant phonons are used to coherently transfer quantum information. The observed interactions between the phonon and the remote qubit promise future quantum optics-style experiments with itinerant phonons.
  arXiv  Detail & Related papers  (2022-01-03T16:04:23Z)
• Critical parametric quantum sensing [0.0]
  We assess the metrological power of parametric Kerr resonators undergoing driven-dissipative transitions. We show that the Heisenberg precision can be achieved with experimentally reachable parameters.
  arXiv  Detail & Related papers  (2021-07-09T15:44:26Z)

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.