Cavity quantum electro-optics: Microwave-telecom conversion in the quantum ground state

• URL: http://arxiv.org/abs/2005.12763v1
• Date: Tue, 26 May 2020 14:35:27 GMT
• Title: Cavity quantum electro-optics: Microwave-telecom conversion in the quantum ground state
• Authors: William Hease, Alfredo Rueda, Rishabh Sahu, Matthias Wulf, Georg Arnold, Harald G. L. Schwefel, Johannes M. Fink
• Abstract summary: We present a cavity electro-optic transceiver operating in a millikelvin environment with a mode occupancy as low as 0.025 $pm$ 0.005 noise photons. The device is versatile and compatible with superconducting qubits, which might open the way for fast and deterministic entanglement distribution between microwave and optical fields.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Fiber optic communication is the backbone of our modern information society, offering high bandwidth, low loss, weight, size and cost, as well as an immunity to electromagnetic interference. Microwave photonics lends these advantages to electronic sensing and communication systems, but - unlike the field of nonlinear optics - electro-optic devices so far require classical modulation fields whose variance is dominated by electronic or thermal noise rather than quantum fluctuations. Here we present a cavity electro-optic transceiver operating in a millikelvin environment with a mode occupancy as low as 0.025 $\pm$ 0.005 noise photons. Our system is based on a lithium niobate whispering gallery mode resonator, resonantly coupled to a superconducting microwave cavity via the Pockels effect. For the highest continuous wave pump power of 1.48 mW we demonstrate bidirectional single-sideband conversion of X band microwave to C band telecom light with a total (internal) efficiency of 0.03 % (0.7 %) and an added output conversion noise of 5.5 photons. The high bandwidth of 10.7 MHz combined with the observed very slow heating rate of 1.1 noise photons s$^{-1}$ puts quantum limited pulsed microwave-optics conversion within reach. The presented device is versatile and compatible with superconducting qubits, which might open the way for fast and deterministic entanglement distribution between microwave and optical fields, for optically mediated remote entanglement of superconducting qubits, and for new multiplexed cryogenic circuit control and readout strategies.

Related papers

• Enhancement of Microwave to Optical Spin-Based Quantum Transduction via a Magnon Mode [0.0]
  We propose a new method for converting single microwave photons to single optical sideband photons based on spinful impurities in magnetic materials. We identify the needed magnetic interactions as well as potential materials systems to enable this speed-up using erbium dopants for telecom compatibility.
  arXiv  Detail & Related papers  (2024-11-19T21:31:37Z)
• Quantum-enabled continuous microwave-to-optics frequency conversion [6.646547697436899]
  A quantum interface between microwave and optical photons is essential for entangling remote superconducting quantum processors. We present a platform that meets these criteria, utilizing a combination of electrostatic and optomechanical interactions in devices made entirely from crystalline silicon.
  arXiv  Detail & Related papers  (2024-06-04T18:34:01Z)
• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Light-Induced Microwave Noise in Superconducting Microwave-Optical Transducers [1.2874569408514918]
  We study light-induced microwave noise in an integrated electro-optical transducer harnessing Pockels effect of thin film lithium niobate. Our results gain insights into the mechanisms and corresponding mitigation strategies for light-induced microwave noise in superconducting microwave-optical transducers.
  arXiv  Detail & Related papers  (2023-11-14T20:25:34Z)
• Electro-optic transduction in silicon via GHz-frequency nanomechanics [7.513920571044517]
  We show an efficient microwave-to-optical photon conversion efficiency of $1.8 times 10-7$ in a 3.3 MHz bandwidth. Our results mark a stepping stone towards quantum transduction with integrated devices made from crystalline silicon.
  arXiv  Detail & Related papers  (2022-10-24T19:06:57Z)
• 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)
• Quantum-limited millimeter wave to optical transduction [50.663540427505616]
  Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
  arXiv  Detail & Related papers  (2022-07-20T18:04:26Z)
• 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)
• 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)
• Spectral multiplexing of telecom emitters with stable transition frequency [68.8204255655161]
  coherent emitters can be entangled over large distances using photonic channels. We observe around 100 individual erbium emitters using a Fabry-Perot resonator with an embedded 19 micrometer thin crystalline membrane. Our results constitute an important step towards frequency-multiplexed quantum-network nodes operating directly at a telecommunication wavelength.
  arXiv  Detail & Related papers  (2021-10-18T15:39:07Z)
• Cryogenic microwave-to-optical conversion using a triply-resonant lithium niobate on sapphire transducer [1.606071974243323]
  We present an integrated electro-optic transducer that combines low-loss lithium niobate photonics with superconducting microwave resonators on a sapphire substrate. Our triply-resonant device operates in a dilution refrigerator and converts microwave photons to optical photons with an on-chip efficiency of $6.6times 10-6$ and a conversion bandwidth of 20 MHz.
  arXiv  Detail & Related papers  (2020-05-02T18:26:18Z)

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.