Optimal Atomic Quantum Sensing using EIT Readout

• URL: http://arxiv.org/abs/2105.10494v3
• Date: Tue, 12 Oct 2021 12:22:57 GMT
• Title: Optimal Atomic Quantum Sensing using EIT Readout
• Authors: David H. Meyer, Chistopher O'Brien, Donald P. Fahey, Kevin C. Cox, and Paul D. Kunz
• Abstract summary: An emerging class of quantum sensors that use Rydberg electromagnetically-induced transparency (EIT) to detect rf electric fields have yet to reach the standard quantum limit. We derive the optimum sensitivity of a three-level quantum sensor based on EIT, or more generally coherent spectroscopy, and compare this to the standard quantum limit. The results may be applied to any EIT-based quantum sensor, but we particularly emphasize our results' importance to the growing field of Rydberg quantum sensing.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum sensors offer the capability to reach unprecedented precision by operating at the standard quantum limit (SQL) or beyond by using quantum entanglement. But an emerging class of quantum sensors that use Rydberg electromagnetically-induced transparency (EIT) to detect rf electric fields have yet to reach the SQL. In this work we prove that this discrepancy is due to fundamental limitations in the EIT probing mechanism. We derive the optimum sensitivity of a three-level quantum sensor based on EIT, or more generally coherent spectroscopy, and compare this to the SQL. We apply a minimal set of assumptions, while allowing strong probing fields, thermal broadening, and large optical depth. We derive the optimal laser intensities and optical depth, providing specific guidelines for sensitive operation under common experimental conditions. Clear boundaries of performance are established, revealing that ladder-EIT can not achieve the SQL due to unavoidable absorption loss. The results may be applied to any EIT-based quantum sensor, but we particularly emphasize our results' importance to the growing field of Rydberg quantum sensing.

Related papers

• Bosonic Entanglement and Quantum Sensing from Energy Transfer in two-tone Floquet Systems [1.2499537119440245]
  Quantum-enhanced sensors, which surpass the standard quantum limit (circuit) and approach the fundamental precision limits dictated by quantum mechanics, are finding applications across a wide range of scientific fields. We introduce entanglement and preserve quantum information among many particles in a sensing circuit. We propose a superconducting-entangled sensor in the microwave regime, highlighting its potential for practical applications in high-precision measurements.
  arXiv  Detail & Related papers  (2024-10-15T00:48:01Z)
• QCircuitBench: A Large-Scale Dataset for Benchmarking Quantum Algorithm Design [63.02824918725805]
  Quantum computing is recognized for the significant speedup it offers over classical computing through quantum algorithms.<n>QCircuitBench is the first benchmark dataset designed to evaluate AI's capability in designing and implementing quantum algorithms.
  arXiv  Detail & Related papers  (2024-10-10T14:24:30Z)
• The curse of random quantum data [62.24825255497622]
  We quantify the performances of quantum machine learning in the landscape of quantum data. We find that the training efficiency and generalization capabilities in quantum machine learning will be exponentially suppressed with the increase in qubits. Our findings apply to both the quantum kernel method and the large-width limit of quantum neural networks.
  arXiv  Detail & Related papers  (2024-08-19T12:18:07Z)
• Neural auto-designer for enhanced quantum kernels [59.616404192966016]
  We present a data-driven approach that automates the design of problem-specific quantum feature maps. Our work highlights the substantial role of deep learning in advancing quantum machine learning.
  arXiv  Detail & Related papers  (2024-01-20T03:11:59Z)
• Optical Quantum Sensing for Agnostic Environments via Deep Learning [59.088205627308]
  We introduce an innovative Deep Learning-based Quantum Sensing scheme. It enables optical quantum sensors to attain Heisenberg limit (HL) in agnostic environments. Our findings offer a new lens through which to accelerate optical quantum sensing tasks.
  arXiv  Detail & Related papers  (2023-11-13T09:46:05Z)
• Design and simulation of a transmon qubit chip for Axion detection [103.69390312201169]
  Device based on superconducting qubits has been successfully applied in detecting few-GHz single photons via Quantum Non-Demolition measurement (QND) In this study, we present Qub-IT's status towards the realization of its first superconducting qubit device.
  arXiv  Detail & Related papers  (2023-10-08T17:11:42Z)
• Sub-SQL electronic field sensing by simultaneously using quantum entanglements and squeezings [0.0]
  Quantum entanglement and quantum squeezing are two most typical approaches to beat the standard quantum limit. Here, by simultaneously using the internal (spin)-external (oscillator) state entanglements and the oscillator squeezings, we show that these sensitivity gains can be effectively surpassed.
  arXiv  Detail & Related papers  (2023-08-08T08:50:12Z)
• Mitigating quantum decoherence in force sensors by internal squeezing [0.0]
  We present evidence that quantum decoherence in high-precision laser interferometric force sensors can be mitigated by a quantum squeeze operation inside the sensor's cavity. Our results pave the way for quantum improvements in scenarios where high decoherence previously precluded the use of squeezed light.
  arXiv  Detail & Related papers  (2023-03-17T13:59:33Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• On exploring the potential of quantum auto-encoder for learning quantum systems [60.909817434753315]
  We devise three effective QAE-based learning protocols to address three classically computational hard learning problems. Our work sheds new light on developing advanced quantum learning algorithms to accomplish hard quantum physics and quantum information processing tasks.
  arXiv  Detail & Related papers  (2021-06-29T14:01:40Z)
• Fundamental Sensitivity Bounds for Quantum Enhanced Optical Resonance Sensors Based on Transmission and Phase Estimation [1.6230648949593154]
  We study optical resonance sensors, which detect a change in a parameter of interest through a resonance shift. We show that the fundamental sensitivity results from an interplay between the QCRB and the transfer function of the system. We also study the effect of losses external to the sensor on the degree of quantum enhancement.
  arXiv  Detail & Related papers  (2021-06-14T20:23:12Z)
• Quantum limits for stationary force sensing [0.0]
  State-of-the-art sensors have reached the sensitivity where the quantum noise of the meter is significant or even dominant. In particular, the sensitivity of the best optomechanical devices has reached the Standard Quantum Limit. Here we develop a unified theory of these two fundamental limits by deriving the general sensitivity constraint.
  arXiv  Detail & Related papers  (2020-11-30T11:58:00Z)

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.