Collision-resolved pressure sensing

• URL: http://arxiv.org/abs/2303.09922v1
• Date: Fri, 17 Mar 2023 12:22:04 GMT
• Title: Collision-resolved pressure sensing
• Abstract summary: We propose the use of nanomechanical devices operated with impulse readout sensitivity around the standard quantum limit'' to sense ultra-low gas pressures. We illustrate this in two paradigmatic model systems: an optically levitated nanobead and a tethered membrane system in a phononic bandgap shield.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Heat and pressure are ultimately transmitted via quantized degrees of freedom, like gas particles and phonons. While a continuous Brownian description of these noise sources is adequate to model measurements with relatively long integration times, sufficiently precise measurements can resolve the detailed time dependence coming from individual bath-system interactions. We propose the use of nanomechanical devices operated with impulse readout sensitivity around the ``standard quantum limit'' to sense ultra-low gas pressures by directly counting the individual collisions of gas particles on a sensor. We illustrate this in two paradigmatic model systems: an optically levitated nanobead and a tethered membrane system in a phononic bandgap shield.

Related papers

• Enhancing low-temperature quantum thermometry and magnetometry via quadratic interactions in optomechanical-like systems [0.0]
  We study the estimation of a thermal bath temperature and an external magnetic field in a two-resonator system.<n>Our results show that the counter-rotating terms in the quadratic interaction naturally induce squeezing at intermediate coupling.<n>Although the optimal measurements remain compatible, statistical correlations between parameters prevent the simultaneous estimation of temperature and magnetic field.
  arXiv  Detail & Related papers  (2026-02-24T13:42:27Z)
• Quantum noise scaling in continuously operating multiparameter sensors [39.146761527401424]
  We map the photon shot noise, spin projection noise, and measurement back-action noise over an order of magnitude in probe power.<n>We observe linear, quadratic, and cubic scaling of the respective total noise powers with probe photon flux.<n>Additional probe-induced relaxation modifies the spin-noise spectrum while preserving the integrated noise scaling.
  arXiv  Detail & Related papers  (2026-02-05T18:41:01Z)
• Mitigating decoherence in molecular spin qudits [0.758677526101969]
  We analyze the characteristics of pure dephasing in molecular qudits under spin-echo sequences. First, we demonstrate a necessary and sufficient condition to prevent the decay of coherence with time. We then advance a proposal for optimized nanomagnets, identifying key ingredients for engineering robust qudits for quantum technologies.
  arXiv  Detail & Related papers  (2025-04-08T14:00:52Z)
• Spin Squeezing with Magnetic Dipoles [37.93140485169168]
  Entanglement can improve the measurement precision of quantum sensors beyond the shot noise limit.<n>We take advantage of the magnetic dipole-dipole interaction native to most neutral atoms to realize spin-squeezed states.<n>We achieve 7.1 dB of metrologically useful squeezing using the finite-range spin exchange interactions in an erbium quantum gas microscope.
  arXiv  Detail & Related papers  (2024-11-11T18:42:13Z)
• Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions [34.82692226532414]
  We observe excited self-ordered subradiant patterns in a quantum gas and report lifetimes far beyond the system's typical timescales.<n>Our work sheds light on the microscopic mechanisms stabilizing quantum states of matter and highlights the potential of photon-mediated forces for engineering correlations in many-body quantum systems.
  arXiv  Detail & Related papers  (2024-07-12T12:47:07Z)
• In-situ-tunable spin-spin interactions in a Penning trap with in-bore optomechanics [41.94295877935867]
  We present an optomechanical system for in-situ tuning of the coherent spin-motion and spin-spin interaction strength. We characterize the system using measurements of the induced mean-field spin precession. These experiments show approximately a $times2$ variation in the ratio of the coherent to incoherent interaction strength.
  arXiv  Detail & Related papers  (2024-01-31T11:00:39Z)
• Limits for coherent optical control of quantum emitters in layered materials [49.596352607801784]
  coherent control of a two-level system is among the most essential challenges in modern quantum optics. We use a mechanically isolated quantum emitter in hexagonal boron nitride to explore the individual mechanisms which affect the coherence of an optical transition under resonant drive. New insights on the underlying physical decoherence mechanisms reveals a limit in temperature until which coherent driving of the system is possible.
  arXiv  Detail & Related papers  (2023-12-18T10:37:06Z)
• Decoherence of a matter-wave interferometer due to dipole-dipole interactions [0.0]
  We will study the decoherence of the matter-wave interferometer due to dipole-dipole interactions. We will conclude by applying the obtained formulae to estimate the dipole-dipole decoherence rate for the Quantum Gravity-induced Entanglement of Masses protocol.
  arXiv  Detail & Related papers  (2023-07-13T18:02:48Z)
• Cold damping of levitated optically coupled nanoparticles [0.0]
  Methods for controlling the motion of single particles, optically levitated in vacuum, have developed rapidly in recent years. We show that the same method can be applied to a pair of nanoparticles, coupled by optical binding forces. We demonstrate cold damping of these normal modes, either independently or simultaneously, to sub-Kelvin temperatures at pressures of 5x10-3 mbar.
  arXiv  Detail & Related papers  (2023-05-19T16:46:10Z)
• Enhanced optomechanical interaction in the unbalanced interferometer [40.96261204117952]
  Quantum optomechanical systems enable the study of fundamental questions on quantum nature of massive objects. Here we propose a modification of the Michelson-Sagnac interferometer, which allows to boost the optomechanical coupling strength.
  arXiv  Detail & Related papers  (2023-05-11T14:24:34Z)
• Evolution of many-body systems under ancilla quantum measurements [58.720142291102135]
  We study the concept of implementing quantum measurements by coupling a many-body lattice system to an ancillary degree of freedom. We find evidence of a disentangling-entangling measurement-induced transition as was previously observed in more abstract models.
  arXiv  Detail & Related papers  (2023-03-13T13:06:40Z)
• Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
  We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall. We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
  arXiv  Detail & Related papers  (2022-09-12T08:21:12Z)
• Fast Quantum Interference of a Nanoparticle via Optical Potential Control [0.0]
  We introduce and theoretically analyze a scheme to prepare and detect non-Gaussian quantum states of an optically levitated particle. We show that this allows operating on short time- and lengthscales, which significantly reduces the demands on decoherence rates in such experiments.
  arXiv  Detail & Related papers  (2022-07-25T21:28:12Z)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• Tunneling Gravimetry [58.80169804428422]
  We examine the prospects of utilizing matter-wave Fabry-P'erot interferometers for enhanced inertial sensing applications. Our study explores such tunneling-based sensors for the measurement of accelerations in two configurations.
  arXiv  Detail & Related papers  (2022-05-19T09:22:11Z)
• Ponderomotive squeezing of light by a levitated nanoparticle in free space [0.0]
  A mechanically compliant element can be set into motion by the interaction with light. This light-driven motion can give rise to ponderomotive correlations in the electromagnetic field. cavities are often employed to enhance these correlations up to the point where they generate quantum squeezing of light.
  arXiv  Detail & Related papers  (2022-02-18T07:57:36Z)
• Probing particle-particle correlation in harmonic traps with twisted light [0.0]
  We explore the potential of twisted light as a tool to unveil many-body effects in parabolically confined systems. We demonstrate the ability of the proposed twisted light probe to capture the transition of interacting fermions into a strongly correlated regime. These features, observed in exact calculations for two electrons, are reproduced in adiabatic Time Dependent Density Functional Theory simulations.
  arXiv  Detail & Related papers  (2021-05-12T16:07:59Z)
• Ultrafast viscosity measurement with ballistic optical tweezers [55.41644538483948]
  Noninvasive viscosity measurements require integration times of seconds. We demonstrate a four orders-of-magnitude improvement in speed, down to twenty microseconds. We achieve this using the instantaneous velocity of a trapped particle in an optical tweezer.
  arXiv  Detail & Related papers  (2020-06-29T00:09:40Z)

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.