Continuously Expanding the Response Frequency of Rydberg Atom-Based Microwave Sensor by Using Quantum Mixer

• URL: http://arxiv.org/abs/2407.17088v1
• Date: Wed, 24 Jul 2024 08:34:49 GMT
• Title: Continuously Expanding the Response Frequency of Rydberg Atom-Based Microwave Sensor by Using Quantum Mixer
• Authors: Sheng-Xian Xiao, Tao Wang,
• Abstract summary: We extend the response frequency range by harnessing a controlled driving field in conjunction with a quantum mixer and heterodyne technology. Our findings pave the way for Rydberg atom-based MW receivers characterized by both high sensitivity and an exceptionally broad bandwidth.
• Score: 3.821019887657395
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Microwave electric (MW) field measurements utilizing Rydberg atoms have witnessed significant advancements, achieving remarkable sensitivity, albeit limited to discrete MW frequencies resonant with Rydberg states. Recently, various continuous-frequency measurement schemes have emerged. However, when the MW detuning surpasses 1 GHz, the sensitivity degrades by over an order of magnitude compared to resonant measurements. In this paper, we successfully extend the response frequency range by harnessing a controlled driving field in conjunction with a quantum mixer and heterodyne technology, theoretically enabling infinite scalability. Notably, second-order effects stemming from quantum mixing necessitate careful consideration to ensure accurate electric field measurements. In addition, compared to resonant measurements, the sensitivity decline for far-detuned MW fields exceeding 1 GHz is less than twice, representing a significant improvement of several orders of magnitude over alternative schemes. Furthermore, the sensitivity of far-detuned MW fields can be efficiently enhanced by augmenting the intensity and frequency of the controlled field. For detunings ranging from 100 MHz to 2 GHz, we present optimal sensitivity values and the corresponding methods to achieve them. Our findings pave the way for Rydberg atom-based MW receivers characterized by both high sensitivity and an exceptionally broad bandwidth.

Related papers

• A Millimeter-Wave Superconducting Qubit [39.76747788992184]
  A superconducting qubit is scaled up to the millimeter-wave range (near 100 GHz) This has many advantages by removing the dependence on rare $3$He for refrigeration, simplifying cryogenic systems, and providing orders of magnitude higher cooling power. This demonstration of a millimeter-wave quantum emitter offers exciting prospects for enhanced sensitivity thresholds in high-frequency photon detection.
  arXiv  Detail & Related papers  (2024-11-17T20:38:17Z)
• Multichannel, ultra-wideband Rydberg Electrometry with an Optical Frequency Comb [39.876383980625235]
  We show the use of a mid-infrared, frequency agile optical frequency comb as the coupling laser for three-photon Rydberg atom electrometry. The generality and flexibility of this method for wideband multiplexing is anticipated to have transformative effects in the field of Rydberg electrometry.
  arXiv  Detail & Related papers  (2024-09-09T19:22:28Z)
• High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth [8.723231868400173]
  Rydberg microwave (MW) sensors are superior to conventional antenna-based techniques because of their wide operating frequency range and outstanding potential sensitivity. We demonstrate a Rydberg microwave receiver with a high sensitivity of $62,mathrmnV mathrmcm-1 mathrmHz-1/2$ and broad instantaneous bandwidth of up to $10.2,mathrmMHz$.
  arXiv  Detail & Related papers  (2023-10-08T04:45:22Z)
• High angular momentum coupling for enhanced Rydberg-atom sensing in the VHF band [33.45861095003339]
  This letter documents a series of experiments with Rydberg atomic sensors to collect and process waveforms from the automated identification system (AIS) used in maritime navigation in the Very High Frequency (VHF) band. We show the results from a new method called High Angular Momentum Matching Excited Raman (HAMMER), which enhances low frequency detection and exhibits superior sensitivity compared to the traditional AC Stark effect.
  arXiv  Detail & Related papers  (2023-10-03T05:53:54Z)
• Enhanced Sensitivity in Rydberg Atom Electric Field Sensors through Autler-Townes Effect and Two-Photon Absorption: A Theoretical Analysis Using Many-Mode Floquet Theory [10.726779205155257]
  We study the sensitivity of a Rydberg atom electric field sensor with a specific focus on the minimum detectable field (MDF) as a key metric. To enhance the sensor's sensitivity when the frequency of the signal electric field deviates from resonance frequencies between Rydberg states, we propose incorporating an extra coupling electric field. These insights hold promising implications for the development of more robust and versatile electric field sensing devices.
  arXiv  Detail & Related papers  (2023-09-20T00:24:57Z)
• Approaching the standard quantum limit of a Rydberg-atom microwave electrometer [12.248913975876139]
  The Rydberg electrometer has garnered considerable attention due to its exceptional sensitivity, small-size, and broad tunability. The advanced Rydberg-atom microwave electrometer falls considerably short of the standard quantum limit by over three orders of magnitude. Our study achieves an electric-field sensitivity of 10.0 nV/cm/Hz1/2 at a 100 Hz repetition rate, reaching a factor of 2.6 above the standard quantum limit and a minimum detectable field of 540 pV/cm.
  arXiv  Detail & Related papers  (2023-07-28T15:26:45Z)
• Sensitivity Comparison of Two-photon vs Three-photon Rydberg Electrometry [45.82374977939355]
  We model the 4-level and 5-level atomic system and compare how the transmission of the probe changes with different powers of the lasers used and strengths of the RF field. We find that the three-photon system boasts much narrower line widths compared to the conventional two-photon EIT. In addition to this, we calculate the expected sensitivity for the two-photon Rydberg sensor and find that the best achievable sensitivity is over an order of magnitude better than the current measured values of 5 uV/m/Hz.
  arXiv  Detail & Related papers  (2022-11-21T20:46:24Z)
• 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)
• Investigation and comparison of measurement schemes in the low frequency biosensing regime using solid-state defect centers [58.720142291102135]
  Solid state defects in diamond make promising quantum sensors with high sensitivity andtemporal resolution. Inhomogeneous broadening and drive amplitude variations have differing impacts on the sensitivity depending on the sensing scheme used. We numerically investigate and compare the predicted sensitivity of schemes based on continuous-wave (CW) optically detected magnetic resonance (ODMR) spectroscopy, pi-pulse ODMR and Ramsey interferometry.
  arXiv  Detail & Related papers  (2021-09-27T13:05:23Z)
• Continuous-Wave Frequency Upconversion with a Molecular Optomechanical Nanocavity [46.43254474406406]
  We use molecular cavity optomechanics to demonstrate upconversion of sub-microwatt continuous-wave signals at $sim$32THz into the visible domain at ambient conditions. The device consists in a plasmonic nanocavity hosting a small number of molecules. The incoming field resonantly drives a collective molecular vibration, which imprints an optomechanical modulation on a visible pump laser.
  arXiv  Detail & Related papers  (2021-07-07T06:23:14Z)
• Heterodyne Sensing of Microwaves with a Quantum Sensor [0.0]
  Diamond quantum sensors are sensitive to weak microwave magnetic fields resonant to the spin transitions. Here we demonstrate a heterodyne detection method for microwaves (MW) leading to a lifetime independent spectral resolution in the GHz range.
  arXiv  Detail & Related papers  (2020-08-23T16:38:05Z)

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.