There and Back Again: Quantum Radiation from Round-trip Flying Mirrors

• URL: http://arxiv.org/abs/2411.03521v1
• Date: Tue, 05 Nov 2024 21:55:54 GMT
• Title: There and Back Again: Quantum Radiation from Round-trip Flying Mirrors
• Authors: Ahsan Mujtaba, Evgenii Ievlev, Matthew J. Gorban, Michael R. R. Good,
• Abstract summary: Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms. After black hole's evaporation shows no time delay, just like a flying mirror that returns to its initial starting point.
• Score: 0.0
• License:
• Abstract: Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms and after black hole's evaporation shows no time delay, just like a flying mirror that returns to its initial starting point. Quantum radiation from a round-trip flying mirror has not been solved despite the model's mathematical simplicity and physical clarity. Here, we solve the particle creation from worldlines that asymptotically start and stop at the same spot, resulting in interesting spectra and symmetries, including the time dependence of thermal radiance associated with Bose-Einstein and Fermi-Dirac Bogolubov coefficients. Fourier analysis, intrinsically linked to the Bogolubov mechanism, shows that a thermal Bogolubov distribution does not describe the spin statistics of the quantum field.

Related papers

• Local quenches in fracton field theory: Lieb-Robinson bound, non-causal dynamics and fractal excitation patterns [37.69303106863453]
  We study the out-of-equilibrium dynamics induced by a local perturbation in fracton field theory. For the theory in finite volume, we show that the fracton wave front acquires fractal shape with non-trivial Hausdorff dimension.
  arXiv  Detail & Related papers  (2023-10-17T12:21:15Z)
• Orbital Polarimetric Tomography of a Flare Near the Sagittarius A* Supermassive Black Hole [17.08371108747886]
  We show the first 3D reconstruction of an emission flare recovered from ALMA light curves observed on April 11, 2017. Our recovery shows compact, bright regions at a distance of roughly six times the event horizon. It suggests a clockwise rotation in a low-inclination orbital plane, consistent with prior studies.
  arXiv  Detail & Related papers  (2023-10-11T17:36:17Z)
• Spectral Gaps via Imaginary Time [0.0]
  We present an approach for evaluating the spectral gap of a Hamiltonian from a simple ratio of two expectation values. In principle, the only requirement is that the initial state is supported on both the ground and first excited states.
  arXiv  Detail & Related papers  (2023-03-03T18:08:14Z)
• Gravitational orbits, double-twist mirage, and many-body scars [77.34726150561087]
  We explore the implications of stable gravitational orbits around an AdS black hole for the boundary conformal field theory. The orbits are long-lived states that eventually decay due to gravitational radiation and tunneling.
  arXiv  Detail & Related papers  (2022-04-20T19:18:05Z)
• Quantum boomerang effect in systems without time reversal symmetry [0.0]
  In an Anderson localized system, a quantum particle with a nonzero initial velocity returns, on average, to its origin. Time reversal invariance was initially thought to be a necessary condition for the existence of this phenomenon. We theoretically analyze the impact of the symmetry breaking on the phenomenon using a one-dimensional system with a spin-orbit coupling.
  arXiv  Detail & Related papers  (2022-03-21T14:36:57Z)
• Quantum simulation of Hawking radiation and curved spacetime with a superconducting on-chip black hole [18.605453401936643]
  We report a fermionic lattice-model-type realization of an analogue black hole by using a chain of 10 superconducting transmon qubits with interactions mediated by 9 transmon-type tunable couplers. The quantum walks of quasi-particle in the curved spacetime reflect the gravitational effect near the black hole, resulting in the behaviour of stimulated Hawking radiation.
  arXiv  Detail & Related papers  (2021-11-22T10:17:23Z)
• Spectra of Neutron Wave Functions in Earth's Gravitational Field [0.0]
  Quantum Bouncing Ball is the time evolution of a quantum wave packet in the linear gravity potential. The qBounce collaboration recently observed such a system by dropping wave packets of ultracold neutrons by a height of roughly 30 microns. In this article, space and momentum spectra as well as Wigner functions of the neutron wave functions in the gravitational field of the Earth are analyzed.
  arXiv  Detail & Related papers  (2021-11-04T11:52:05Z)
• Information storage and near horizon quantum correlations [0.0]
  We show that the entropy sphere associated with the underlying microstructure has to be necessarily broadened when the fine grained radiation entropy becomes maximal. We argue that the standard thermodynamical description is valid so long the black hole viewed from outside is sufficiently large, radiation escaping into the future null infinity can be described on a smooth spacetime background, and the von Neumann entropy of Hawking radiation evolves unitarily.
  arXiv  Detail & Related papers  (2021-09-03T17:32:45Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Quantum particle across Grushin singularity [77.34726150561087]
  We study the phenomenon of transmission across the singularity that separates the two half-cylinders. All the local realisations of the free (Laplace-Beltrami) quantum Hamiltonian are examined as non-equivalent protocols of transmission/reflection. This allows to comprehend the distinguished status of the so-called bridging' transmission protocol previously identified in the literature.
  arXiv  Detail & Related papers  (2020-11-27T12:53:23Z)
• Hawking radiation particle spectrum of a Kerr-Newman black hole [0.0]
  We consider a model for the Hawking radiation produced by a Kerr-Newman black hole. We derive the particle spectrum and its late-time thermal distribution which reduces to the Kerr, Reissner-Nordstr"om and Schwarzschild cases. We also compute the particle spectrum of the extremal Kerr-Newman system and the total energy emitted.
  arXiv  Detail & Related papers  (2020-06-17T06:44:40Z)

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.