Probing high-frequency gravitational waves with entangled vibrational qubits in linear Paul traps

• URL: http://arxiv.org/abs/2509.22475v1
• Date: Fri, 26 Sep 2025 15:22:29 GMT
• Title: Probing high-frequency gravitational waves with entangled vibrational qubits in linear Paul traps
• Authors: Ryoto Takai,
• Abstract summary: We show that entanglement of $N$ vibrational qubits enhances the signal probability by a factor of $N2$, improving sensitivity beyond the standard quantum limit.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This work investigates the use of linear Paul traps as quantum sensors for detecting megahertz gravitational waves. Single-ion configurations exploit graviton-photon conversion in the presence of external magnetic fields, while two-ion systems use relative-motion excitations, which do not require magnets, to distinguish gravitational waves from axion dark matter. Furthermore, we show that entanglement of $N$ vibrational qubits enhances the signal probability by a factor of $N^2$, improving sensitivity beyond the standard quantum limit.

Related papers

• QuGrav: Bringing gravitational waves to light with Qumodes [0.0]
  We propose using qumodes, quantum bosonic modes, for detecting high-frequency gravitational waves via the inverse Gertsenshtein effect.<n>For an occupation number $n$ of the photon field in a qumode, the conversion probability is enhanced by a factor of $n+1$ due to Bose-Einstein statistics.<n>Our results indicate that, at microwave frequencies and with existing technology, the proposed setup can attain sensitivities within 1.7 orders of magnitude of the cosmological bound.
  arXiv  Detail & Related papers  (2025-06-11T07:06:08Z)
• Squeezing atomic $p$-orbital condensates for detecting gravitational waves [4.791094460901941]
  We propose an orbital optomechanical (OOM) sensor that exploits the sensitive coupling of an orbitally squeezed $p$-orbital Bose-Einstein to spacetime condensates, enabling the detection of interferometer phase shifts induced by gravitational waves.
  arXiv  Detail & Related papers  (2024-10-01T15:48:34Z)
• Characterisation of a levitated sub-mg ferromagnetic cube in a planar alternating-current magnetic Paul trap [0.0]
  We characterize a sub-mgmagnetic cube levitated in an alternating-current planar magnetic Paul trap at room temperature. This technique sets out a path for MHz librational modes in the micron-sized particle limit, allowing for magnetic coupling to superconducting circuits and spin-based quantum systems.
  arXiv  Detail & Related papers  (2024-08-13T11:54:34Z)
• Thermal masses and trapped-ion quantum spin models: a self-consistent approach to Yukawa-type interactions in the $λ\!φ^4$ model [44.99833362998488]
  A quantum simulation of magnetism in trapped-ion systems makes use of the crystal vibrations to mediate pairwise interactions between spins. These interactions can be accounted for by a long-wavelength relativistic theory, where the phonons are described by a coarse-grained Klein-Gordon field. We show that thermal effects, which can be controlled by laser cooling, can unveil this flow through the appearance of thermal masses in interacting QFTs.
  arXiv  Detail & Related papers  (2023-05-10T12:59:07Z)
• Continuous dynamical decoupling of optical $^{171}$Yb$^{+}$ qudits with radiofrequency fields [45.04975285107723]
  We experimentally achieve a gain in the efficiency of realizing quantum algorithms with qudits. Our results are a step towards the realization of qudit-based algorithms using trapped ions.
  arXiv  Detail & Related papers  (2023-05-10T11:52:12Z)
• Integrated Quantum Optical Phase Sensor [48.7576911714538]
  We present a photonic integrated circuit fabricated in thin-film lithium niobate. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
  arXiv  Detail & Related papers  (2022-12-19T18:46:33Z)
• 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)
• Towards directional force sensing in levitated optomechanics [0.0]
  We show that mechanical cross-correlation spectra $S_xy(omega)$ offer new possibilities. We analyse this for detection of microscopic gas currents, but any broad spectrum directed force will suffice. Near quantum regimes, we quantify the imprecision due to the $x-y$ correlating effect of quantum shot noise imprecision.
  arXiv  Detail & Related papers  (2022-08-18T21:03:00Z)
• Boosting the sensitivity of high frequency gravitational wave detectors by PT-symmetry [9.717134926446956]
  Current laser interferometer gravitational wave detectors have limited signal response at the kilo-Hertz band. This work proposes an alternative protocol for boosting the sensitivity of the gravitational wave detectors at high frequency. With the auxiliary quantum amplifier, this design has the feature of Parity-Time (PT) symmetry so that the detection band will be significantly broadened.
  arXiv  Detail & Related papers  (2022-06-24T09:18:39Z)
• Surpassing the Energy Resolution Limit with ferromagnetic torque sensors [55.41644538483948]
  We evaluate the optimal magnetic field resolution taking into account the thermomechanical noise and the mechanical detection noise at the standard quantum limit. We find that the Energy Resolution Limit (ERL), pointed out in recent literature, can be surpassed by many orders of magnitude.
  arXiv  Detail & Related papers  (2021-04-29T15:44:12Z)
• Quantum-enhanced sensing of displacements and electric fields with large trapped-ion crystals [0.0]
  We realize a many-body quantum-enhanced sensor to detect weak displacements and electric fields using a large crystal of $sim 150$ trapped ions. We report quantum enhanced sensitivity to displacements of $8.8 pm 0.4$dB below the standard quantum limit and a sensitivity for measuring electric fields of $240pm10mathrmnVmathrmm-1$ in $1$ second.
  arXiv  Detail & Related papers  (2021-03-15T20:20:57Z)
• Quantum metamaterial for nondestructive microwave photon counting [52.77024349608834]
  We introduce a single-photon detector design operating in the microwave domain based on a weakly nonlinear metamaterial. We show that the single-photon detection fidelity increases with the length of the metamaterial to approach one at experimentally realistic lengths. In stark contrast to conventional photon detectors operating in the optical domain, the photon is not destroyed by the detection and the photon wavepacket is minimally disturbed.
  arXiv  Detail & Related papers  (2020-05-13T18:00:03Z)
• Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions [85.83811987257297]
  We study the coupling of pure and magnetically diluted crystals of HoW$_10$ magnetic clusters to microwave superconducting coplanar waveguides. Results show that engineering spin-clock states of molecular systems offers a promising strategy to combine sizeable spin-photon interactions with a sufficient isolation from unwanted magnetic noise sources.
  arXiv  Detail & Related papers  (2019-11-18T11:03:06Z)

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.