Entanglement of photonic modes from a continuously driven two-level system

• URL: http://arxiv.org/abs/2407.07991v1
• Date: Wed, 10 Jul 2024 18:48:41 GMT
• Title: Entanglement of photonic modes from a continuously driven two-level system
• Authors: Jiaying Yang, Ingrid Strandberg, Alejandro Vivas-Viana, Akshay Gaikwad, Claudia Castillo-Moreno, Anton Frisk Kockum, Muhammad Asad Ullah, Carlos Sanchez Munoz, Axel Martin Eriksson, Simone Gasparinetti,
• Abstract summary: We experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive. We show that entanglement is generated between modes extracted from the two sidebands of the resonance fluorescence spectrum. Our approach can be utilized to distribute entanglement at a high rate in various physical platforms.
• Score: 34.50067763557076
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The ability to generate entangled states of light is a key primitive for quantum communication and distributed quantum computation. Continuously driven sources, including those based on spontaneous parametric downconversion, are usually probabilistic, whereas deterministic sources require accurate timing of the control fields. Here, we experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive, taking advantage of mode matching in the time and frequency domain. Using joint quantum state tomography and logarithmic negativity, we show that entanglement is generated between modes extracted from the two sidebands of the resonance fluorescence spectrum. Because the entangled photonic modes are perfectly orthogonal, they can be transferred into distinct quantum memories. Our approach can be utilized to distribute entanglement at a high rate in various physical platforms, with applications in waveguide quantum electrodynamics, distributed quantum computing, and quantum networks.

Related papers

• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Multiplexed quantum state transfer in waveguides [0.0]
  A quantum network serves as a testbed to show how to maximize the storage and manipulation of quantum information in QED setups. We analyze two approaches using wavepacket engineering and quantum state transfer protocols. We show that state-of-the-art experiments can employ dozens of multiplexed photons with global fidelities fulfilling the requirements imposed by fault-tolerant quantum computing.
  arXiv  Detail & Related papers  (2024-03-18T20:10:29Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• 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)
• Few-photon transport via a multimode nonlinear cavity: theory and applications [0.0]
  We study few-photon transport via a waveguide-coupled multimode optical cavity with second-order bulk nonlinearity. Our results might lead to significant applications of quantum photonic circuits in all-optical quantum information processing and quantum network protocols.
  arXiv  Detail & Related papers  (2022-09-08T15:28:05Z)
• Deterministic Generation of Multidimensional Photonic Cluster States with a Single Quantum Emitter [1.2233362977312945]
  We present an experimental implementation in the microwave domain of a resource-efficient scheme for the deterministic generation of 2D photonic cluster states. By utilizing a coupled resonator array as a slow-light waveguide, a single flux-tunable transmon qubit as a quantum emitter, and a second auxiliary transmon as a switchable mirror, we achieve rapid, shaped emission of entangled photon wavepackets. We leverage these capabilities to generate a 2D cluster state of four photons with 70% fidelity, as verified by tomographic reconstruction of the quantum state.
  arXiv  Detail & Related papers  (2022-06-21T02:08:18Z)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• On-demand source of dual-rail photon pairs based on chiral interaction in a nanophotonic waveguide [2.3776015607838747]
  Entanglement is the fuel of advanced quantum technology. In photonics, entanglement has traditionally been generated probabilistically. We propose and experimentally realize an on-demand source of dual-rail photon pairs.
  arXiv  Detail & Related papers  (2021-09-08T09:39:55Z)
• Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
  Integrated photonics is a robust platform for quantum information processing. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
  arXiv  Detail & Related papers  (2020-05-19T16:46:44Z)
• Engineering continuous and discrete variable quantum vortex states by nonlocal photon subtraction in a reconfigurable photonic chip [0.0]
  We study the production of entangled two- and N-mode quantum states of light in optical waveguides. We propose a quantum photonic circuit that produces a reconfigurable superposition of photon subtraction on two single-mode squeezed states.
  arXiv  Detail & Related papers  (2020-04-11T11:11:16Z)
• Quantum interactions with pulses of radiation [77.34726150561087]
  This article presents a general master equation formalism for the interaction between travelling pulses of quantum radiation and localized quantum systems. We develop a complete input-output theory to describe the driving of quantum systems by arbitrary incident pulses of radiation and the quantum state of the field emitted into any desired outgoing temporal mode.
  arXiv  Detail & Related papers  (2020-03-10T08:35:18Z)

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.