# INTERFACE OF GRAVITATIONAL AND QUANTUM REALMS

@article{Ahluwalia2002INTERFACEOG, title={INTERFACE OF GRAVITATIONAL AND QUANTUM REALMS}, author={Dharam Vir Ahluwalia}, journal={Modern Physics Letters A}, year={2002}, volume={17}, pages={1135-1145} }

The talk centers around the question: Can general-relativistic description of physical reality be considered complete? On the way I argue how – unknown to many a physicists, even today – the "forty orders of magnitude argument" against quantum gravity phenomenology was defeated more than a quarter of a century ago, and how we now stand at the possible verge of detecting a signal for the spacetime foam, and studying the gravitationally-modified wave particle duality using superconducting quantum…

## 27 Citations

### QUANTUM INTERFERENCE TO MEASURE SPACETIME CURVATURE: A PROPOSED EXPERIMENT AT THE INTERSECTION OF QUANTUM MECHANICS AND GENERAL RELATIVITY

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- 2003

An experiment in Low Earth Orbit (LEO) is proposed to measure components of the Riemann curvature tensor using atom interferometry. We show that the difference in the quantum phase Δϕ of an atom that…

### Near-surface quantum states of neutrons in the gravitational and centrifugal potentials

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Two related physical phenomena have recently been observed: quantum states of ultracold neutrons (UCN) in the gravitational field above a flat mirror, and quantum states of cold neutrons (CN) in an…

### Quantum Gravity Phenomenology

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- 2006

The old order of magnitude argument stating that physics from Planck scale is out of experimental reach has been reconsidered in recent years in the light of current astrophysical and high precision…

### Measurability in quantum theory, gravity and thermodynamics and general remarks to Hawking's problems

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- 2017

In thermodynamics the measurability notion, introduced previously in a quantum theory, is defined on the basis of a minimal inverse temperature. Based on this notion, some implications are obtained…

### Quantum symmetry, the cosmological constant and Planck scale phenomenology

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- 2003

We present a simple algebraic mechanism for the emergence of deformations of Poincar? symmetries in the low-energy limit of quantum theories of gravity. The deformations, called ?-Poincar? algebras,…

### De Sitter Relativity: a New Road to Quantum Gravity?

- Physics
- 2009

The Poincaré group generalizes the Galilei group for high-velocity kinematics. The de Sitter group is assumed to go one step further, generalizing Poincaré as the group governing high-energy…

### KINEMATICAL SOLUTION OF THE UHE-COSMIC-RAY PUZZLE WITHOUT A PREFERRED CLASS OF INERTIAL OBSERVERS

- Physics
- 2003

Among the possible explanations for the puzzling observations of cosmic rays above the GZK cutoff there is growing interest in the ones that represent kinematical solutions, based either on general…

### Abstract-algebraic interpretations of the energy–time uncertainty relation prove quantization of time

- Physics
- 2020

In modern physics, the general theory of relativity (GTR) successfully predicts the vital structure of gravity. The GTR confirmed that gravity is the distortion of four-dimensional spacetime (x,y,z...

## References

SHOWING 1-10 OF 64 REFERENCES

### Quantum Gravity: a Progress Report

- Physics
- 2001

The problem of reconciling general relativity and quantum theory has fascinated and bedeviled physicists for more than 70?years. Despite recent progress in string theory and loop quantum gravity, a…

### Possible astrophysical probes of quantum gravity

- Physics
- 2002

A satisfactory theory of quantum gravity will very likely require modification of our classical perception of space-time, perhaps by giving it a 'foamy' structure at scales of order the Planck…

### Quantum gravity: Testing time for theories

- PhysicsNature
- 1999

Gravity waves — predicted by Einstein's general theory of relativity, but not yet detected — may one day reveal more about the very early Universe. They may also test theories of quantum gravity…

### Gravitational field of the quantized electromagnetic plane wave

- Physics
- 1987

The quantum and classical descriptions of an electro-magnetic field are connected by the correspondence principle. We consider the electromagntic field as a source for gravity and compare the metrics…

### THE EQUIVALENCE PRINCIPLE AND QUANTUM MECHANICS: A THEME IN HARMONY

- Physics
- 2002

There have been many speculations that the equivalence principle might be violated in situations involving quantum systems in a classical gravitational field. Also, several authors have stated that…

### Interplay of gravitation and linear superposition of different mass eigenstates

- Physics
- 1998

The interplay of gravitation and the quantum-mechanical principle of linear superposition induces a new set of neutrino oscillation phases. These ensure that the flavor-oscillation clocks, inherent…