At the interface of quantum and gravitational realms

Details At the interface of quantum and gravitational realms At the interface of quantum and gravitational realms

2002-02-27

arxiv.org/abs/gr-qc/0202098v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Invited talk presented at "Mexican meeting on mathematical and experimental physics (Colegio Nacional, 10-14 IX 2001)." 8 page

Scientific paper

In this talk I review a series of recent conceptual developments at the interface of the quantum and gravitational realms. Wherever possible, I comment on the possibility to probe the interface experimentally. It is concluded that the underlying spacetime for a quantum theory of gravity must be non-commutative, that wave-particle duality suffers significant modification at the Planck scale, and that the latter forbids probing spacetime below Planck length. Furthermore, study of quantum test particles in classical and quantum sources of gravity puts forward theoretical challenges and new experimental possibilities. It is suggested that existing technology may allow to probe gravitationally-modified wave particle duality in the laboratory.

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