The generation rate of quantum gravity induced entanglement with multiple massive particles

• URL: http://arxiv.org/abs/2210.17259v2
• Date: Sun, 6 Nov 2022 12:05:52 GMT
• Title: The generation rate of quantum gravity induced entanglement with multiple massive particles
• Authors: Pan Li, Yi Ling, Zhangping Yu
• Abstract summary: We investigate the generation rate of quantum gravity induced entanglement of masses in setup with multiple quantum massive particles. We find that the prism setup with a massive particle at the center is the most efficient setup for the entanglement generation.
• Score: 6.4610636773238905
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the generation rate of quantum gravity induced entanglement of masses(QGEM) in setup with multiple quantum massive particles, among of which only the gravity interaction due to the Newton potential is taken into account. When the distance between any two adjacent Stern-Gerlach (SG) devices is fixed, we consider all the possible configurations of the setup with the same number of particles. In particular, we systemically analyze the case of particle number n=4 and find that the prism setup with a massive particle at the center is the most efficient setup for the entanglement generation. This result can be extended to a system with multiple particles up to seven, where the entanglement efficiency is also enhanced in comparison with the setup with fewer particles. This work provides the strategy to construct the QGEM setup with the best generation rate of entanglement.

Related papers

• Long-lived entanglement of molecules in magic-wavelength optical tweezers [41.94295877935867]
  We present the first realisation of a microwave-driven entangling gate between two molecules. We show that the magic-wavelength trap preserves the entanglement, with no measurable decay over 0.5 s. The extension of precise quantum control to complex molecular systems will allow their additional degrees of freedom to be exploited across many domains of quantum science.
  arXiv  Detail & Related papers  (2024-08-27T09:28:56Z)
• Microwave control of collective quantum jump statistics of a dissipative Rydberg gas [24.677576227304854]
  Quantum many-body systems near phase transitions respond collectively to externally applied perturbations. We explore this phenomenon in a laser-driven dissipative Rydberg gas tuned to a bistable regime. Our study demonstrates the control of collective statistical properties of dissipative quantum many-body systems without the necessity of fine-tuning or of ultra cold temperatures.
  arXiv  Detail & Related papers  (2024-02-07T13:06:11Z)
• Gravity-induced entanglement between two massive microscopic particles in curved spacetime: I.The Schwarzschild background [2.915799083273604]
  The gravitational field within curved spacetime can induce observable entanglement between particle pairs in both scenarios. This approach establishes a more pronounced and extensive manifestation of the quantum influences of gravity. These experiments hold immense advantages and implications for the detection of quantum gravity.
  arXiv  Detail & Related papers  (2023-08-31T08:16:43Z)
• Optimal Superpositions for Particle Detection via Quantum Phase [0.0]
  State of the art proposals for novel quantum sensors often rely on the creation of large superpositions. We consider scattering interactions of directional particulate environments with a system in a quantum superposition. We find that there is an "optimal superposition" size for measuring incoming particles via a relative phase.
  arXiv  Detail & Related papers  (2023-07-27T20:30:20Z)
• Macroscopic Quantum Superpositions via Dynamics in a Wide Double-Well Potential [0.0]
  We present an experimental proposal for the rapid preparation of the center of mass of a levitated particle in a macroscopic quantum state. This state is prepared by letting the particle evolve in a static double-well potential after a sudden switchoff of the harmonic trap. We highlight the possibility of using two particles, one evolving in each potential well, to mitigate the impact of collective sources of noise and decoherence.
  arXiv  Detail & Related papers  (2023-03-14T15:00:55Z)
• Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
  We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation. We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
  arXiv  Detail & Related papers  (2022-07-07T09:39:40Z)
• Genuine multipartite entanglement and quantum coherence in an electron-positron system: Relativistic covariance [117.44028458220427]
  We analyze the behavior of both genuine multipartite entanglement and quantum coherence under Lorentz boosts. A given combination of these quantum resources is shown to form a Lorentz invariant.
  arXiv  Detail & Related papers  (2021-11-26T17:22:59Z)
• Observation-dependent suppression and enhancement of two-photon coincidences by tailored losses [68.8204255655161]
  Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter. In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement. Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
  arXiv  Detail & Related papers  (2021-05-12T06:47:35Z)
• Probing the edge between integrability and quantum chaos in interacting few-atom systems [0.0]
  We propose a minimum model for chaos that can be experimentally realized with cold atoms trapped in one-dimensional multi-well potentials. We show that the competition between the particle interactions and the periodic structure of the confining potential reveals subtle indications of quantum chaos for 3 particles, while for 4 particles stronger signatures are seen.
  arXiv  Detail & Related papers  (2021-04-27T01:40:02Z)
• How many particles make up a chaotic many-body quantum system? [0.0]
  We consider multiple system sizes which are at least three times larger than the number of particles. We find that robust signatures of quantum chaos emerge for as few as 4 particles in the case of short-range interactions and as few as 3 particles for long-range interactions.
  arXiv  Detail & Related papers  (2020-12-28T19:00:00Z)
• Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons [58.720142291102135]
  We establish quantum features of an atomic soliton Josephson junction (SJJ) device. We show that the SJJ-model in quantum domain exhibits unusual features due to its effective nonlinear strength proportional to the square of total particle number. We have shown that the obtained quantum state is more resistant to few particle losses from the condensates if tiny components of entangled Fock states are present.
  arXiv  Detail & Related papers  (2020-11-26T09:26:19Z)

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.