Mass-Independent Gravitationally Induced Entanglement

• URL: http://arxiv.org/abs/2602.19306v1
• Date: Sun, 22 Feb 2026 18:58:57 GMT
• Title: Mass-Independent Gravitationally Induced Entanglement
• Authors: Lorenzo Braccini, Alessio Serafini, Sougato Bose,
• Abstract summary: We analytically solve the entangling quantum dynamics of two interacting Stern-Gerlach Interferometers(SGI)<n>Each SGI exploits an operator-valued force applied by a qubit to create and recombine a non-Gaussian state of matter.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We analytically solve the entangling quantum dynamics of two interacting Stern-Gerlach Interferometers~(SGI). Each SGI exploits an operator-valued force applied by a qubit to create and recombine a non-Gaussian state of matter. The entangling phase between the two qubits generated by the leading-order gravitational interaction of the massive degrees of freedom is found to be mass-independent, both for unitary and open dynamics, irrespective of the temperature and squeezing of the initial states. Further, we show that the solution of the four interferometric paths reveals that the mere presence of the interaction does not allow for a perfect recombination of the centre of mass. This second-order effect, alongside higher-order interaction terms, can be used to bound the mass from above and below, thus restricting the experiment's regime to mesoscopic masses. By solving the open dynamics which includes diffusion and dephasing with initial squeezed thermal states, the bounds are tightened by the inclusion of realistic experimental noise. We discuss diamagnetic levitated masses with embedded NV-centres as a specific physical implementation.

Related papers

• Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
  We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
  arXiv  Detail & Related papers  (2026-03-02T22:59:25Z)
• Gravitationally mediated entanglement of fermionic qubits: from static to dynamical limits [0.055997926295092294]
  We analyze the gravitationally generated entanglement between two remote qubits by considering two explicit microscopic models.<n>A graviton propagator is employed as the mediator of the interactions, while the qubits are considered in a spatial superposition state.<n>Our findings sheds more light into the gravity mediated entanglement between two spin-1/2 particles.
  arXiv  Detail & Related papers  (2025-10-23T14:13:06Z)
• Observation of Hilbert-space fragmentation and fractonic excitations in two-dimensional Hubbard systems [0.0]
  We experimentally observe Hilbert space fragmentation (HSF) in a two-dimensional tilted Bose-Hubbard model. We find uniform initial states with equal particle number and energy differ strikingly in their relaxation dynamics. Our results mark the first observation of HSF beyond one dimension, as well as the concomitant direct observation of fractons.
  arXiv  Detail & Related papers  (2024-04-23T10:22:40Z)
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation [49.1574468325115]
  Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement. We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
  arXiv  Detail & Related papers  (2023-06-09T16:49:55Z)
• 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)
• Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
  We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
  arXiv  Detail & Related papers  (2022-07-21T18:00:17Z)
• Continuous-Variable Entanglement through Central Forces: Application to Gravity between Quantum Masses [4.362023116605902]
  We show that entanglement in such experiments is sensitive to initial relative momentum only when the system evolves into non-Gaussian states. From a quantum information perspective, the results find applications as a momentum witness of non-Gaussian entanglement.
  arXiv  Detail & Related papers  (2022-06-26T15:07:14Z)
• 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)
• Relative Acceleration Noise Mitigation for Nanocrystal Matter-wave Interferometry: Application to Entangling Masses via Quantum Gravity [0.0]
  Matter wave interferometers with large momentum transfers will face a universal dephasing due to relative accelerations between the interferometric mass and the apparatus. Here we propose a solution that works even without actively tracking the relative accelerations: putting both the interfering mass and its associated apparatus in a freely falling capsule. We show that the former can be reduced below desired values by appropriate pressures and temperatures, while the latter can be fully mitigated in a controlled environment.
  arXiv  Detail & Related papers  (2020-07-29T18:01:13Z)
• Probing eigenstate thermalization in quantum simulators via fluctuation-dissipation relations [77.34726150561087]
  The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems. Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations. Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
  arXiv  Detail & Related papers  (2020-07-20T18:00:02Z)
• Environmentally Induced Entanglement -- Anomalous Behavior in the Adiabatic Regime [0.0]
  In a perturbative regime the influence of the environment on the system dynamics can effectively be described by a unitary contribution. For resonant qubits, even in the adiabatic regime, the entanglement dynamics is still influenced by an environmentally induced Hamiltonian interaction.
  arXiv  Detail & Related papers  (2020-06-08T08:39:03Z)
• Theory of waveguide-QED with moving emitters [68.8204255655161]
  We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace. We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
  arXiv  Detail & Related papers  (2020-03-20T12:14:10Z)

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.