The entropy of a black hole and Hawking radiation should have the same temperature given
by the surface gravity, within a numerical factor of the order of unity. In addition, Hawking …

The emission of Hawking radiation from a black hole was predicted to be stationary, which is
necessary for the correspondence between Hawking radiation and blackbody radiation …

We study analytically an analog of the Andreev reflection at a normal-superfluid interface.
The polariton gapped superfluid region is achieved by quasiresonant optical pum**. The …

The black-hole laser (BHL) effect is the self-amplification of Hawking radiation in the
presence of a pair of horizons which act as a resonant cavity. In a flowing atomic …

We numerically study the temporal evolution of a black-hole laser configuration displaying a
pair of black-and white-hole horizons in a flowing atomic condensate. This configuration is …

Waves propagating near an event horizon display interesting features including logarithmic
phase singularities and caustics. We consider an acoustic horizon in a flowing Bose …

We consider a sonic black-hole scenario where an atom condensate flows through a
subsonic–supersonic interface. We discuss several criteria that reveal the existence of non …

For flowing quantum gases, it has been found that at long times an initial black-hole laser
(BHL) configuration exhibits only two possible states: the ground state or a periodic self …

We propose the concept of a spontaneous many-body Floquet state. This is a state that, in
the absence of external periodic driving, self-oscillates like in the presence of a periodic …

We observe the time dependence of the Hawking radiation in an analogue black hole. Soon
after the formation of the horizon, there is little or no Hawking radiation. The Hawking …