A millisecond integrated quantum memory for photonic qubits

• URL: http://arxiv.org/abs/2504.07348v1
• Date: Thu, 10 Apr 2025 00:15:18 GMT
• Title: A millisecond integrated quantum memory for photonic qubits
• Authors: Yu-Ping Liu, Zhong-Wen Ou, Tian-Xiang Zhu, Ming-Xu Su, Chao Liu, Yong-Jian Han, Zong-Quan Zhou, Chuan-Feng Li, Guang-Can Guo,
• Abstract summary: Integrated operations of quantum memories could enable scalable application with low-power consumption.<n>Here, we demonstrate quantum storage of photonic qubits for 1.021 ms based on a laser-written optical waveguide fabricated in a 151Eu3+:Y2SiO5 crystal.
• Score: 0.8699241399244759
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Quantum memories for light are essential building blocks for quantum repeaters and quantum networks. Integrated operations of quantum memories could enable scalable application with low-power consumption. However, the photonic quantum storage lifetime in integrated optical waveguide has so far been limited to tens of microseconds, falling short of the requirements for practical applications. Here, we demonstrate quantum storage of photonic qubits for 1.021 ms based on a laser-written optical waveguide fabricated in a 151Eu3+:Y2SiO5 crystal. Spin dephasing of 151Eu3+ is mitigated through dynamical decoupling applied via on-chip electric waveguides and we obtain a storage efficiency of 12.0(0.5)% at 1.021 ms, which is a demonstration of integrated quantum memories that outperforms the efficiency of a simple fiber delay line. Such long-lived waveguide-based quantum memory could support applications in quantum repeaters, and further combination with critical magnetic fields could enable potential application as transportable quantum memories.

Related papers

• Light Storage in Light Cages: A Scalable Platform for Multiplexed Quantum Memories [0.8539703554674337]
  We demonstrate the storage of attenuated coherent light pulses in a cesium (Cs) quantum memory based on a 3D-printed hollow-core waveguide.<n>We successfully integrated multiple LC memories onto a single chip within a Cs vapor cell, achieving consistent performance across all devices.<n>These results represent a significant advancement toward spatially multiplexed quantum memories and have the potential to elevate memory integration to unprecedented levels.
  arXiv  Detail & Related papers  (2025-03-28T13:35:12Z)
• Quantum Optical Memory for Entanglement Distribution [52.77024349608834]
  Entanglement of quantum states over long distances can empower quantum computing, quantum communications, and quantum sensing. Over the past two decades, quantum optical memories with high fidelity, high efficiencies, long storage times, and promising multiplexing capabilities have been developed.
  arXiv  Detail & Related papers  (2023-04-19T03:18:51Z)
• 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)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)
• Field-deployable Quantum Memory for Quantum Networking [62.72060057360206]
  We present a quantum memory engineered to meet real-world deployment and scaling challenges. The memory technology utilizes a warm rubidium vapor as the storage medium, and operates at room temperature. We demonstrate performance specifications of high-fidelity retrieval (95%) and low operation error $(10-2)$ at a storage time of 160 $mu s$ for single-photon level quantum memory operations.
  arXiv  Detail & Related papers  (2022-05-26T00:33:13Z)
• Picosecond Pulsed Squeezing in Thin-Film Lithium Niobate Strip-Loaded Waveguides at Telecommunication Wavelengths [52.77024349608834]
  We show quadrature squeezing of picosecond pulses in a thin-film lithium niobate strip-loaded waveguide. This work highlights the potential of the strip-loaded waveguide platform for broadband squeezing applications.
  arXiv  Detail & Related papers  (2022-04-12T10:42:19Z)
• Slowing down light in a qubit metamaterial [98.00295925462214]
  superconducting circuits in the microwave domain still lack such devices. We demonstrate slowing down electromagnetic waves in a superconducting metamaterial composed of eight qubits coupled to a common waveguide. Our findings demonstrate high flexibility of superconducting circuits to realize custom band structures.
  arXiv  Detail & Related papers  (2022-02-14T20:55:10Z)
• Storage and analysis of light-matter entanglement in a fibre-integrated system [48.7576911714538]
  We demonstrate a fiber-integrated quantum memory entangled with a photon at telecommunication wavelength. The storage device is based on a fiber-pigtailed laser written waveguide in a rare-earth doped solid and allows an all-fiber stable adressing of the memory. Our results feature orders of magnitude advances in terms of storage time and efficiency for integrated storage of light-matter entanglement, and constitute a significant step forward towards quantum networks using integrated devices.
  arXiv  Detail & Related papers  (2022-01-10T14:28:04Z)
• On-Demand Storage and Retrieval of Microwave Photons Using a Superconducting Multiresonator Quantum Memory [8.02214511485348]
  A quantum memory that can store quantum states faithfully and retrieve them on demand has wide applications in quantum information science. We implement a superconducting multi-resonator quantum memory composed of a set of frequency-tunable coplanar transmission line (CPW) resonators. We demonstrate on-demand storage and retrieval of a time-bin flying qubit.
  arXiv  Detail & Related papers  (2021-11-10T09:38:09Z)
• On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide [48.7576911714538]
  Laser-written diamond photonics offers three-dimensional fabrication capabilities and large mode-field diameters matched to fiber optic technology. To realize large cooperativities, we combine excitation of single shallow-implanted silicon vacancy centers via large numerical aperture optics. We demonstrate single-emitter extinction measurements with a cooperativity of 0.153 and a beta factor of 13% yielding 15.3% as lower bound for the quantum efficiency of a single emitter.
  arXiv  Detail & Related papers  (2021-11-02T16:01:15Z)
• An integrated whispering-gallery-mode resonator for solid-state coherent quantum photonics [6.082529164787429]
  We report on an integrated microdisk cavity containing self-assembled quantum dots to coherently route photons. We show how this integrated system can coherently re-route photons between the drop and bus ports. We discuss the strengths and limitations of this approach, focusing on how it can be used to increase the efficiency of quantum devices.
  arXiv  Detail & Related papers  (2021-07-26T12:51:39Z)
• On-demand quantum storage of photonic qubits in an on-chip waveguide [1.545577144935917]
  Photonic quantum memory is the core element in quantum information processing (QIP) Here we report the on-demand storage of time-bin qubits in an on-chip waveguide memory on the surface of a $151$Eu$3+$:Y$$$SiO$_5$ crystal. A qubit storage fidelity of $99.3%pm0.2%$ is obtained with a input of 0.5 photons per pulse, far beyond the highest fidelity achievable using the classical measure-and-prepare strategy.
  arXiv  Detail & Related papers  (2020-09-03T16:56:35Z)
• 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)
• Efficient quantum memory for single photon polarization qubits [0.21670084965090575]
  A quantum memory is a key interface for realizing long-distance quantum communication and large-scale quantum computation. Here, we report the demonstration of a quantum memory for single-photon polarization qubits with an efficiency of >85% and a fidelity of >99 %. For the single-channel quantum memory, the optimized efficiency for storing and retrieving single-photon temporal waveforms can be as high as 90.6 %.
  arXiv  Detail & Related papers  (2020-04-07T04:39:54Z)

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.