Doppler-enhanced superheterodyne Rydberg microwave receiver

• URL: http://arxiv.org/abs/2606.24247v1
• Date: Tue, 23 Jun 2026 07:35:42 GMT
• Title: Doppler-enhanced superheterodyne Rydberg microwave receiver
• Abstract summary: We report the enhanced sensitivity of the Rydberg microwave (MW) receiver by exploiting the Doppler effect in a vapor cell.<n>A two-photon Rydberg ladder scheme is implemented via the co-propagation of probe and coupling lasers.<n>We achieve a sensitivity of $35.1 mathrmnV cm-1 Hz-1/2$ using the heterodyne technique, which is 1.5 times better than that obtained in the counter-propagating configuration.
• Score: 1.463689729914406
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We report the enhanced sensitivity of the Rydberg microwave (MW) receiver by exploiting the Doppler effect in a vapor cell. A two-photon Rydberg ladder scheme is implemented via the co-propagation of probe and coupling lasers, which enhances the Doppler effect. When an MW field is applied, microwave dressing modifies the velocity-dependent resonance condition, enabling stronger contributions from atoms with non-zero velocities and leading to an enhancement of the EIT transmission. Based on this mechanism, we achieve a sensitivity of $35.1\ \mathrm{nV\ cm^{-1}\ Hz^{-1/2}}$ using the heterodyne technique, which is 1.5 times better than that obtained in the counter-propagating configuration. Meanwhile, the required local oscillator (LO) field is reduced by a factor of 17.6 compared with the counter-propagating configuration, which is advantageous for applications requiring minimal radiation and low power consumption. Moreover, the co-propagating configuration is more amenable to integration or portable sensing platforms because multiple laser fields can be delivered through a single optical fiber.

Related papers

• Stroboscopic detection of itinerant microwave photons [0.0]
  We show how to implement a near-projective measurement of a photon impinging on one of the cavities.<n>We achieve highly efficient detection with low dark counts.
  arXiv  Detail & Related papers  (2026-03-17T13:45:18Z)
• Bose condensation and Bogoliubov excitation in resonator-embedded superconducting qubit network [53.72731614116211]
  Superconducting qubit networks (SQNs) embedded in a low-dissipative resonator are a promising device.<n>A quantum ac Stark effect provides by coupling between an SQN and microwave photons of a resonator, leads to a strong nonlinear interaction between photons.
  arXiv  Detail & Related papers  (2026-01-21T15:43:43Z)
• First Sub-MeV Dark Matter Search with the QROCODILE Experiment Using Superconducting Nanowire Single-Photon Detectors [51.550188330599525]
  We present the first results from the Quantum Resolution-d Cryogenic Observatory for Dark matter Incident at Low Energy (QROCODILE)<n>The QROCODILE experiment uses a microwire-based superconducting nanowire single-photon detector (SNSPD) as a target and sensor for dark matter scattering and absorption.<n>We report new world-leading constraints on the interactions of sub-MeV dark matter particles with masses as low as 30 keV.
  arXiv  Detail & Related papers  (2024-12-20T19:00:00Z)
• 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)
• Doppler sensitivity and resonant tuning of Rydberg atom-based antennas [0.0]
  Rydberg atom vapor cells can in principle reach sensitivities beyond those of any wire antenna. This paper presents a detailed theoretical investigation of Rydberg antenna sensitivity.
  arXiv  Detail & Related papers  (2024-02-27T21:36:29Z)
• Optomechanical ring resonator for efficient microwave-optical frequency conversion [3.8548408603545106]
  Phonons traveling in solid-state devices are emerging as a universal excitation that can couple to different physical systems through mechanical interaction. It is possible to build optomechanical integrated circuits (OMICs) that guide both photons and phonons and interconnect discrete photonic and phononic devices. Here, we demonstrate an OMIC including an optomechanical ring resonator (OMR) in which infrared photons and GHz phonons co-resonate to induce significantly enhanced interconversion.
  arXiv  Detail & Related papers  (2023-11-10T23:54:07Z)
• Stepping closer to pulsed single microwave photon detectors for axions search [0.0]
  Axions detection requires the ultimate sensitivity down to the single photon limit. We follow two promising approaches that both rely on the use of superconducting devices based on the Josephson effect. Once optimized, both the devices have the potential to reach single photon sensitivity.
  arXiv  Detail & Related papers  (2023-02-15T09:50:34Z)
• 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)
• Rydberg atom-based field sensing enhancement using a split-ring resonator [50.591267188664666]
  We investigate the use of a split-ring resonator incorporated with an atomic-vapor cell to improve sensitivity and the minimal detectable electric field of Rydberg atom-based sensors. By combining EIT with a heterodyne Rydberg atom-based mixer approach, the SRR allows for the a sensitivity of 5.5$mu$V/m$sqrtrm Hz$, which is two-orders of magnitude improvement in sensitivity than when the SRR is not used.
  arXiv  Detail & Related papers  (2022-02-18T01:44:56Z)
• Dual-laser self-injection locking to an integrated microresonator [93.17495788476688]
  We experimentally demonstrate the dual-laser SIL of two multifrequency laser diodes to different modes of an integrated Si$_3$N$_4$ microresonator. Locking both lasers to the same mode results in a simultaneous frequency and phase stabilization and coherent addition of their outputs.
  arXiv  Detail & Related papers  (2022-01-06T16:25:15Z)
• 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.