Random-access quantum memory using chirped pulse phase encoding
- URL: http://arxiv.org/abs/2103.11697v4
- Date: Thu, 2 Jun 2022 07:46:58 GMT
- Title: Random-access quantum memory using chirped pulse phase encoding
- Authors: James O'Sullivan, Oscar W. Kennedy, Kamanasish Debnath, Joseph
Alexander, Christoph W. Zollitsch, Mantas \v{S}im\.enas, Akel Hashim,
Christopher N. Thomas, Stafford Withington, Irfan Siddiqi, Klaus M{\o}lmer,
John J.L. Morton
- Abstract summary: We introduce a protocol using chirped pulses to encode qubits within an ensemble of quantum two-level systems.
We demonstrate the protocol in the microwave regime using donor spins in silicon coupled to a superconducting cavity.
This approach offers the potential for microwave random access quantum memories with lifetimes exceeding seconds.
- Score: 0.7586208381054043
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: As in conventional computing, key attributes of quantum memories are high
storage density and, crucially, random access, or the ability to read from or
write to an arbitrarily chosen register. However, achieving such random access
with quantum memories in a dense, hardware-efficient manner remains a
challenge, for example requiring dedicated cavities per qubit or pulsed field
gradients. Here we introduce a protocol using chirped pulses to encode qubits
within an ensemble of quantum two-level systems, offering both random access
and naturally supporting dynamical decoupling to enhance the memory lifetime.
We demonstrate the protocol in the microwave regime using donor spins in
silicon coupled to a superconducting cavity, storing up to four multi-photon
microwave pulses in distinct memory modes and retrieving them on-demand up to
2~ms later. A further advantage is the natural suppression of superradiant echo
emission, which we show is critical when approaching unit cooperativity. This
approach offers the potential for microwave random access quantum memories with
lifetimes exceeding seconds, while the chirped pulse phase encoding could also
be applied in the optical regime to enhance quantum repeaters and networks.
Related papers
- Deterministic generation of frequency-bin-encoded microwave photons [2.696404891373769]
We experimentally demonstrate a frequency-bin encoding method of microwave photonic modes using superconducting circuits.
We deterministically encode the quantum information from a superconducting qubit by simultaneously emitting its information into two photonic modes at different frequencies.
The frequency-bin-encoded photonic modes can be used, at the receiver processor, to detect the occurrence of photon loss.
arXiv Detail & Related papers (2024-10-30T16:53:01Z) - Microwave Quantum Illumination with Optical Memory and Single-Mode Phase-Conjugate Receiver [5.7993016886528785]
Microwave quantum illumination with entangled pairs of microwave signal and optical idler modes, can achieve the sub-optimal performance.
We first propose a testbed of microwave quantum illumination with an optical memory which is simulated with a delay line in the idler mode.
We propose a single-mode phase conjugate receiver that consists of a low-reflectivity beam splitter, an electro-optomechanical phase conjugator, and a photon number resolving detector.
arXiv Detail & Related papers (2024-05-23T02:44:19Z) - Multimode Squeezed State for Reconfigurable Quantum Networks at
Telecommunication Wavelengths [0.0]
We present an experimental source of multimode squeezed states of light at telecommunication wavelengths.
Generation at such wavelengths is especially important as it can enable quantum information processing, communication, and sensing beyond the laboratory scale.
Results pave the way for a scalable implementation of continuous variable quantum information protocols at telecommunication wavelengths.
arXiv Detail & Related papers (2023-06-12T17:52:40Z) - 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) - 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) - Multimode capacity of atomic-frequency comb quantum memories [48.7576911714538]
Ensemble-based quantum memories are key to developing multiplexed quantum repeaters.
Rare-earth ion doped crystals are main candidates for highly multimode quantum memories.
AFC quantum memory provides large temporal multimode capacity.
arXiv Detail & Related papers (2022-02-24T22:07:01Z) - 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) - Telecom-heralded entanglement between remote multimode solid-state
quantum memories [55.41644538483948]
Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation.
Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories.
We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
arXiv Detail & Related papers (2021-01-13T14:31:54Z) - A Frequency-Multiplexed Coherent Electro-Optic Memory in Rare Earth
Doped Nanoparticles [94.37521840642141]
Quantum memories for light are essential components in quantum technologies like long-distance quantum communication and distributed quantum computing.
Recent studies have shown that long optical and spin coherence lifetimes can be observed in rare earth doped nanoparticles.
We report on coherent light storage in Eu$3+$:Y$$O$_3$ nanoparticles using the Stark Echo Modulation Memory (SEMM) quantum protocol.
arXiv Detail & Related papers (2020-06-17T13:25:54Z) - Near-degenerate quadrature-squeezed vacuum generation on a
silicon-nitride chip [54.87128096861778]
In this Letter, we demonstrate the generation of quadrature-phase squeezed states in the radio-frequency carrier sideband using a small-footprint silicon-nitride microresonator with a dual-pumped four-wave-mixing process.
It is critical to account for the nonlinear behavior of the pump fields to properly predict the squeezing that can be generated in this system.
arXiv Detail & Related papers (2020-02-04T01:41:41Z) - Experimental protection of quantum coherence by using a phase-tunable
image drive [0.0]
The protection of qubit coherence is an essential task in order to build a practical quantum computer.
We propose and demonstrate a simple and highly efficient alternative pulse protocol based on Floquet modes.
arXiv Detail & Related papers (2020-01-08T08:51:45Z)
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.