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In the conventional scenario, the Hawking radiation is believed to be atunneling process at the event horizon of the black hole. In the quantum fieldtheoretic approach the Schwinger's mechanism is generally used to give anexplanation of this tunneling process. It is the decay of quantum vacuum intoparticle anti-particle pairs near the black hole surface. However, in areference frame undergoing an uniform accelerated motion in an otherwise flatMinkowski space-time geometry, in the non-relativistic approximation, theparticle production near the event horizon of a black hole may be treated as akind of Fowler-Nordheim field emission, which is the typical electron emissionprocess from a metal surface under the action of an external electrostaticfield. This type of emission from metal surface is allowed even at extremelylow temperature. It has been noticed that in one-dimensional scenario, theSchr$\ddot{\rm{o}}$dinger equation satisfied by the created particle(anti-particle) near the event horizon, can be reduced to a differential formwhich is exactly identical with that obeyed by an electron immediately afterthe emission from the metal surface under the action of a strong electrostaticfield. The mechanism of particle production near the event horizon of a blackhole is therefore identified with Schwinger process in relativistic quantumfield theory, whereas in the non-relativistic scenario it may be interpreted asFowler-Nordheim emission process, when observed from an uniformly acceleratedframe.

The Hawking Radiation as Gravitational Fowler-Nordheim Emission in Uniformly Accelerated Frame, in The Non-Relativistic Scenario