Giant Enhancement of Vacuum Friction in Spinning YIG Nanospheres

• URL: http://arxiv.org/abs/2401.09563v1
• Date: Wed, 17 Jan 2024 19:33:43 GMT
• Title: Giant Enhancement of Vacuum Friction in Spinning YIG Nanospheres
• Authors: Farhad Khosravi, Wenbo Sun, Chinmay Khandekar, Tongcang Li, Zubin Jacob
• Abstract summary: We show that a spinning yttrium iron garnet (YIG) nanosphere near aluminum or YIG slabs exhibits vacuum radiation eight orders of magnitude larger than other metallic or dielectric nanospheres. We propose a realistic experimental setup for observing the effects of this large vacuum radiation and frictional torque under experimentally accessible conditions.
• Score: 8.123905102080693
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Experimental observations of vacuum radiation and vacuum frictional torque are challenging due to their vanishingly small effects in practical systems. For example, a rotating nanosphere in free space slows down due to friction from vacuum fluctuations with a stopping time around the age of the universe. Here, we show that a spinning yttrium iron garnet (YIG) nanosphere near aluminum or YIG slabs exhibits vacuum radiation eight orders of magnitude larger than other metallic or dielectric spinning nanospheres. We achieve this giant enhancement by exploiting the large near-field magnetic local density of states in YIG systems, which occurs in the low-frequency GHz regime comparable to the rotation frequency. Furthermore, we propose a realistic experimental setup for observing the effects of this large vacuum radiation and frictional torque under experimentally accessible conditions.

Related papers

• Quantum control and Berry phase of electron spins in rotating levitated diamonds in high vacuum [40.27879500842531]
  Levitated diamond particles in high vacuum with internal spin qubits have been proposed for exploring quantum mechanics. We fabricate an integrated surface ion trap with multiple stabilization electrodes. This facilitates on-chip levitation and, for the first time, optically detected magnetic resonance measurements of a nanodiamond levitated in high vacuum.
  arXiv  Detail & Related papers  (2023-09-11T20:56:09Z)
• Dynamics of molecular rotors in bulk superfluid helium [68.8204255655161]
  We report on the experimental study of the laser-induced rotation of helium dimers inside the superfluid $4mathrmHe$ bath at variable temperature. The observed temperature dependence suggests a non-equilibrium evolution of the quantum bath, accompanied by the emission of the wave of second sound.
  arXiv  Detail & Related papers  (2023-04-08T01:22:19Z)
• Exploring the limits of ultracold atoms in space [0.0]
  Existing space-based cold atom experiments have demonstrated the utility of microgravity for improvements in observation times. The tantalizing possibility that such experiments may one day be able to probe physics of quantum objects with masses approaching the Plank mass is discussed.
  arXiv  Detail & Related papers  (2023-02-22T18:40:39Z)
• Quantum control of nuclear spin qubits in a rapidly rotating diamond [62.997667081978825]
  Nuclear spins in certain solids couple weakly to their environment, making them attractive candidates for quantum information processing and inertial sensing. We demonstrate optical nuclear spin polarization and rapid quantum control of nuclear spins in a diamond physically rotating at $1,$kHz, faster than the nuclear spin coherence time. Our work liberates a previously inaccessible degree of freedom of the NV nuclear spin, unlocking new approaches to quantum control and rotation sensing.
  arXiv  Detail & Related papers  (2021-07-27T03:39:36Z)
• Spin-mechanics with nitrogen-vacancy centers and trapped particles [0.0]
  We review recent experimental work in the field of spin-mechanics that employ the interaction between trapped particles and electronic spins in the solid state. Our focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that will enable these systems to unleash their full potential.
  arXiv  Detail & Related papers  (2021-04-20T20:43:24Z)
• 6 GHz hyperfast rotation of an optically levitated nanoparticle in vacuum [10.830588649968856]
  We report an experimental observation of a record-breaking ultra-high rotation frequency about 6 GHz in an optically levitated nanoparticles system. We optically trap a nanoparticles in the gravity direction with a high numerical aperture (NA) objective lens, which shows significant advantages in compensating the influences of the scattering force and the photophoretic force on the trap. We measure a highest rotation frequency about 4.3 GHz of the trapped nanoparticles without feedback cooling and a 6 GHz rotation with feedback cooling, which is the fastest mechanical rotation ever reported to date.
  arXiv  Detail & Related papers  (2020-12-17T16:00:31Z)
• Enhanced decoherence for a neutral particle sliding on a metallic surface in vacuum [68.8204255655161]
  We show that non-contact friction enhances the decoherence of the moving atom. We suggest that measuring decoherence times through velocity dependence of coherences could indirectly demonstrate the existence of quantum friction.
  arXiv  Detail & Related papers  (2020-11-06T17:34:35Z)
• Ferromagnetic Gyroscopes for Tests of Fundamental Physics [49.853792068336034]
  A ferromagnetic gyroscope (FG) is a ferromagnet whose angular momentum is dominated by electron spin polarization and that will precess under the action of an external torque. We model and analyze FG dynamics and sensitivity, focusing on practical schemes for experimental realization.
  arXiv  Detail & Related papers  (2020-10-17T07:13:50Z)
• Gravity Probe Spin: Prospects for measuring general-relativistic precession of intrinsic spin using a ferromagnetic gyroscope [51.51258642763384]
  An experimental test at the intersection of quantum physics and general relativity is proposed. The behavior of intrinsic spin in spacetime is an experimentally open question. A measurement is possible by using mm-scale ferromagnetic gyroscopes in orbit around the Earth.
  arXiv  Detail & Related papers  (2020-06-16T17:18:44Z)
• Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures [57.72546394254112]
  This paper demonstrates cooling of the center-of-mass motion of 10 $mu$m-diameter optically levitated silica spheres to an effective temperature of $50pm22 mu$K. It is shown that under these conditions the spheres remain stably trapped at pressures of $sim 10-7$ mbar with no active cooling for periods longer than a day.
  arXiv  Detail & Related papers  (2020-01-29T16:20:35Z)

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.