A bstract Gravitational wave 'echoes' during black-hole merging events have been
advocated as possible signals of modifications to gravity in the strong-field (but …

The thermodynamics of “horizon brightened acceleration radiation”(HBAR), due to a random
atomic cloud freely falling into a black hole in a Boulware-like vacuum, is shown to mimic the …

A quantum-optics approach is used to study the nature of the acceleration radiation due to a
random atomic cloud falling freely into a generalized Schwarzschild black hole through a …

A two-level atom freely falling towards a Schwarzschild black hole was recently shown to
detect radiation in the Boulware vacuum in an insightful paper [MO Scully et al., Proc. Natl …

An atom falling freely into a Kerr black hole in a Boulware-like vacuum is shown to emit
radiation with a Planck spectrum at the Hawking temperature. For a cloud of falling atoms …

A static observer with a finite lifetime has causal access to only a limited region of spacetime
known as the causal diamond. The presence of an apparent horizon in the causal diamond …

Some aspects of atom-field interactions in curved spacetime are reviewed. Of great interest
are quantum radiative and entanglement processes arising out of Rindler and black hole …

ABSTRACT A path-integral approach is used to study the spectral properties of the
generators of the SO (2, 1) symmetry of conformal quantum mechanics (CQM). In particular …

An observer with a finite lifetime T perceives the Minkowski vacuum as a thermal state at
temperature TD= 2 ℏ/(π T), as a result of being constrained to a double-coned-shaped …

The singular behavior of conformal interactions is examined within a comparative analysis of
renormalization frameworks. The effective approach—inspired by the effective-field theory …