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Quantum Foam and Quantum Gravity Phenomenology
Our understanding of spacetime has undergone some major changes in the last hundred years. Before last century, spacetime was regarded as nothing...
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Constraining quantum fluctuations of spacetime foam from BBN
A possibility to describe quantum gravitational fluctuations of the spacetime background is provided by virtual D -branes. These effects may induce a...
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Effects on neutrino propagation in space-time foam of D-branes revisited
Neutrinos from the cosmos have proven to be ideal for probing the nature of space-time. Previous studies on high-energy events of IceCube suggested...
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CPT Violation and Decoherence in Quantum Gravity
In these lectures I review, in as much pedagogical way as possible, various theoretical ideas and motivation for violation of CPT invariance in some...
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High-resolution recognition of FOAM modes via an improved EfficientNet V2 based convolutional neural network
Vortex beam with fractional orbital angular momentum (FOAM) is the excellent candidate for improving the capacity of free-space optical (FSO)...
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Quantum Gravity
It is not clear at all what is the problem in quantum gravity (cf. [3] or [8] for general reviews, written in the same spirit as the present one)....
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Corner Symmetry and Quantum Geometry
By virtue of the Noether theorems, the vast gauge redundancy of general relativity provides us with a rich algebra of boundary charges that generate...
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Loop Quantum Gravity: A Demystified View
AbstractAn attempt is made to demystify loop quantum gravity (LQG) in a concise and lucid way. LQG is a background-independent as well as...
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Loop Quantum Gravity and planck Scale Phenomenology
Of the different approaches to quantum gravity, the best developed, from the point of view of addressing the key theoretical questions a quantum...
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Emergence of Riemannian Quantum Geometry
In this chapter, we take up the quantum Riemannian geometry of a spatial slice of spacetime. While researchers are still facing the challenge of...
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Search for decoherence from quantum gravity with atmospheric neutrinos
Neutrino oscillations at the highest energies and longest baselines can be used to study the structure of spacetime and test the fundamental...
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Effects of underlying topology on quantum state discrimination
In this work, we show that quantum state discrimination can be modified due to a change in the underlying topology of a system. In particular, we...
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Loop Quantum Cosmology: Relation Between Theory and Observations
This chapter provides a review of the frameworks developed for cosmological perturbation theory in loop quantum cosmology and applications to various...
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Lorentzian quantum gravity via Pachner moves: one-loop evaluation
Lorentzian quantum gravity is believed to cure the pathologies encountered in Euclidean quantum gravity, such as the conformal factor problem. We...
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Formation and evaporation of quantum black holes from the decoupling mechanism in quantum gravity
We propose a new method to account for quantum-gravitational effects in cosmological and black hole spacetimes. At the core of our construction is...
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Many-Body Quantum Spacetime
Now that we have presented a potential generalisation of statistical equilibrium in the previous chapter, we move on to its application in discrete...
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Probing quantum decoherence at Belle II and LHCb
With the advent of Belle II and the LHCb upgrade, the precision measurements of various B-Physics observables are on cards. This holds significant...
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Introduction to Quantum-Gravity Phenomenology
After a brief review of the first phase of development of Quantum-Gravity Phenomenology, I argue that this research line is now ready to enter a more...
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Neutrino oscillation bounds on quantum decoherence
We consider quantum-decoherence effects in neutrino oscillation data. Working in the open quantum system framework we adopt a phenomenological...
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Phase transitions in TGFT: a Landau-Ginzburg analysis of Lorentzian quantum geometric models
In the tensorial group field theory (TGFT) approach to quantum gravity, the basic quanta of the theory correspond to discrete building blocks of...