Quantum transduction of superconducting qubit in electro-optomechanical and electro-optomagnonical system

• URL: http://arxiv.org/abs/2305.11629v1
• Date: Fri, 19 May 2023 12:14:21 GMT
• Title: Quantum transduction of superconducting qubit in electro-optomechanical and electro-optomagnonical system
• Authors: Roson Nongthombam, Pooja Kumari Gupta, and Amarendra K. Sarma
• Abstract summary: We study the quantum transduction of a superconducting qubit to an optical photon in electro-optomechanical and electro-optomagnonical systems.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study the quantum transduction of a superconducting qubit to an optical photon in electro-optomechanical and electro-optomagnonical systems. The electro-optomechanical system comprises a flux-tunable transmon qubit coupled to a suspended mechanical beam, which then couples to an optical cavity. Similarly, in an electro-optomagnonical system, a flux-tunable transmon qubit is coupled to an optical whispering gallery mode via a magnon excitation in a YIG ferromagnetic sphere. In both systems, the transduction process is done in sequence. In the first sequence, the qubit states are encoded in coherent excitations of phonon/magnon modes through the phonon/magnon-qubit interaction, which is non-demolition in the qubit part. We then measure the phonon/magnon excitations, which reveal the qubit states, by counting the average number of photons in the optical cavities. The measurement of the phonon/magnon excitations can be performed at a regular intervals of time.

Related papers

• Passive photonic CZ gate with two-level emitters in chiral multi-mode waveguide QED [41.94295877935867]
  We design a passive conditional gate between co-propagating photons using an array of only two-level emitters. The key resource is to harness the effective photon-photon interaction induced by the chiral coupling of the emitter array to two waveguide modes. We show how to harness this non-linear phase shift to engineer a conditional, deterministic photonic gate in different qubit encodings.
  arXiv  Detail & Related papers  (2024-07-08T18:00:25Z)
• Strong coupling between a single photon and a photon pair [43.14346227009377]
  We report an experimental observation of the strong coupling between a single photon and a photon pair in an ultrastrongly-coupled circuit-QED system. Results represent a key step towards a new regime of quantum nonlinear optics.
  arXiv  Detail & Related papers  (2024-01-05T10:23:14Z)
• Resolving Fock states near the Kerr-free point of a superconducting resonator [51.03394077656548]
  We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting Asymmetric Inductive eLement) We have excited photons near this Kerr-free point and characterized the device using a transmon qubit.
  arXiv  Detail & Related papers  (2022-10-18T09:55:58Z)
• High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time [52.77024349608834]
  Frequency conversion between microwave and optical photons is a key enabling technology to create links between superconducting quantum processors. We propose a microwave-optical platform based on long-coherence-time superconducting radio-frequency (SRF) cavities. We show that the fidelity of heralded entanglement generation between two remote quantum systems is enhanced by the low microwave losses.
  arXiv  Detail & Related papers  (2022-06-30T17:57:37Z)
• Synchronization of a superconducting qubit to an optical field mediated by a mechanical resonator [0.0]
  We study the synchronization of a superconducting qubit to an external optical field via a mechanical resonator. The bistability in one of the qubit polarization vectors, where the qubit rotates about the polarization vector, is observed for a single quantum trajectory run.
  arXiv  Detail & Related papers  (2022-05-24T17:22:43Z)
• Parametric Amplification of an Optomechanical Quantum Interconnect [0.0]
  Connecting superconducting qubits to optical fiber necessitates the conversion of microwave photons to optical photons. Modern experimental demonstrations exhibit strong coupling between a microwave resonator and an optical cavity mediated through phononic modes. We propose a theoretical framework for time-dependent control of the driving lasers based on the input-output formalism of quantum optics.
  arXiv  Detail & Related papers  (2022-02-24T18:48:58Z)
• Vectorial polaritons in the quantum motion of a levitated nanosphere [0.0]
  We show the generation of phonon-polaritons in the quantum motion of an optically-levitated nanosphere. Our results pave the way to novel protocols for quantum information transfer between photonic and phononic components.
  arXiv  Detail & Related papers  (2020-12-30T18:26:28Z)
• Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
  A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition. The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model. A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
  arXiv  Detail & Related papers  (2020-11-07T11:18:24Z)
• Photon-Dressed Bloch-Siegert Shift in an Ultrastrongly Coupled Circuit Quantum Electrodynamical System [4.3957154133979905]
  A cavity quantum electrodynamical (QED) system beyond the strong-coupling regime is expected to exhibit intriguing quantum phenomena. We report a direct measurement of the photon-dressed qubit transition frequencies up to four photons by harnessing the same type of state transitions in an ultrastrongly coupled circuit-QED system.
  arXiv  Detail & Related papers  (2020-07-01T05:28:33Z)
• Quantum transduction of optical photons from a superconducting qubit [0.0]
  We demonstrate the conversion of a microwave-frequency excitation of a superconducting transmon qubit into an optical photon. With proposed improvements in the device and external measurement set-up, such quantum transducers may lead to practical devices capable of realizing new hybrid quantum networks.
  arXiv  Detail & Related papers  (2020-04-09T22:34:40Z)
• Generating Spatially Entangled Itinerant Photons with Waveguide Quantum Electrodynamics [43.53795072498062]
  In this work, we demonstrate the deterministic generation of such photons using superconducting transmon qubits that are directly coupled to a waveguide. We generate two-photon N00N states and show that the state and spatial entanglement of the emitted photons are tunable via the qubit frequencies.
  arXiv  Detail & Related papers  (2020-03-16T16:03:27Z)

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.