Entangled sensor-networks for dark-matter searches

• URL: http://arxiv.org/abs/2203.05375v2
• Date: Fri, 15 Jul 2022 02:40:05 GMT
• Title: Entangled sensor-networks for dark-matter searches
• Authors: Anthony J. Brady, Christina Gao, Roni Harnik, Zhen Liu, Zheshen Zhang and Quntao Zhuang
• Abstract summary: We provide a theoretical framework to leverage the benefits of quantum squeezing in a network setting consisting of many sensor-cavities. By forming a local sensor network, the signals among the cavities can be combined coherently to boost the axion search. We explore the performance advantage of such a local, entangled sensor-network, which enjoys both coherence between the axion signals and entanglement between the sensors.
• Score: 2.395175962739043
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The hypothetical axion particle (of unknown mass) is a leading candidate for dark matter (DM). Many experiments search for axions with microwave cavities, where an axion may convert into a cavity photon, leading to a feeble excess in the output power of the cavity. Recent work [Nature 590, 238 (2021)] has demonstrated that injecting squeezed vacuum into the cavity can substantially accelerate the axion search. Here, we go beyond and provide a theoretical framework to leverage the benefits of quantum squeezing in a network setting consisting of many sensor-cavities. By forming a local sensor network, the signals among the cavities can be combined coherently to boost the axion search. Furthermore, injecting multipartite entanglement across the cavities -- generated by splitting a squeezed vacuum -- enables a global noise reduction. We explore the performance advantage of such a local, entangled sensor-network, which enjoys both coherence between the axion signals and entanglement between the sensors. Our analyses are pertinent to next-generation DM-axion searches aiming to leverage a network of sensors and quantum resources in an optimal way. Finally, we assess the possibility of using a more exotic quantum state, the Gottesman-Kitaev-Preskill (GKP) state. Despite a constant-factor improvement in the scan-time relative to a single-mode squeezed-state in the ideal case, the advantage of employing a GKP state disappears when a practical measurement scheme is considered.

Related papers

• Spin Squeezing of Macroscopic Nuclear Spin Ensembles [44.99833362998488]
  Squeezing macroscopic spin ensembles may prove to be a useful technique for fundamental physics experiments. We analyze the squeezing dynamics in the presence of decoherence and finite spin polarization, showing that achieving 7 dB spin squeezing is feasible in several nuclear spin systems.
  arXiv  Detail & Related papers  (2025-02-19T21:16:54Z)
• Experimental distributed quantum sensing in a noisy environment [0.10840985826142428]
  We experimentally demonstrate the associated sensing protocol, using trapped-ion sensors. An entangled state of multi-dimensional sensors is created that isolates and optimally detects a signal.
  arXiv  Detail & Related papers  (2025-01-15T16:42:55Z)
• Quantum-enhanced dark matter detection with in-cavity control: mitigating the Rayleigh curse [0.31410859223862103]
  A major approach of searching for dark matter relies on detecting feeble noise in microwave cavities. We propose an in-situ protocol to mitigate the Rayleigh curse. Thanks to the recent advance in magnetic-field-resilient in-cavity squeezing, the proposed protocol is compatible with axion detection scenario.
  arXiv  Detail & Related papers  (2024-09-06T23:37:01Z)
• 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)
• 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)
• Giant-cavity-based quantum sensors with enhanced performance [0.0]
  We propose a giant-cavity-based quantum sensor for the first time. Multiple position-dependent couplings can induce an inherent non-reciprocal coupling between the cavities.
  arXiv  Detail & Related papers  (2022-04-05T08:22:47Z)
• Quantum dual-path interferometry scheme for axion dark matter searches [1.0636475069923585]
  We show that in a cavity permeated by a magnetic field, the single axion-photon conversion rate is enhanced by the cavity quality factor. The axion cavity can be considered a quantum device emitting single photons with temporal separations.
  arXiv  Detail & Related papers  (2022-01-20T16:55:49Z)
• A cavity entanglement and state swapping method to accelerate the search for axion dark matter [0.0]
  We introduce a method of scan rate enhancement in which an axion-sensitive cavity is coupled to an auxiliary resonant circuit. We show analytically that when combined, these interactions can amplify an axion signal before it becomes polluted by vacuum noise introduced by measurement. This internal amplification yields a wider bandwidth of axion sensitivity, increasing the rate at which the detector can search through frequency space.
  arXiv  Detail & Related papers  (2021-07-08T23:38:03Z)
• Near-Field Terahertz Nanoscopy of Coplanar Microwave Resonators [61.035185179008224]
  Superconducting quantum circuits are one of the leading quantum computing platforms. To advance superconducting quantum computing to a point of practical importance, it is critical to identify and address material imperfections that lead to decoherence. Here, we use terahertz Scanning Near-field Optical Microscopy to probe the local dielectric properties and carrier concentrations of wet-etched aluminum resonators on silicon.
  arXiv  Detail & Related papers  (2021-06-24T11:06:34Z)
• Intrinsic mechanisms for drive-dependent Purcell decay in superconducting quantum circuits [68.8204255655161]
  We find that in a wide range of settings, the cavity-qubit detuning controls whether a non-zero photonic population increases or decreases qubit decay Purcell. Our method combines insights from a Keldysh treatment of the system, and Lindblad theory.
  arXiv  Detail & Related papers  (2021-06-09T16:21:31Z)
• Mid-infrared homodyne balanced detector for quantum light characterization [52.77024349608834]
  We present the characterization of a novel balanced homodyne detector operating in the mid-infrared. We discuss the experimental results with a view to possible applications to quantum technologies, such as free-space quantum communication.
  arXiv  Detail & Related papers  (2021-03-16T11:08:50Z)
• Detection of biological signals from a live mammalian muscle using a diamond quantum sensor [41.91891973513696]
  We show an alternative technique for detecting magnetic fields generated by the current from action potentials in living tissue using nitrogen vacancy centres in diamond. We show these measurements can be performed in an ordinary, unshielded lab environment and that the signal can be easily recovered by digital signal processing techniques.
  arXiv  Detail & Related papers  (2020-08-03T16:40:44Z)

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.