498 citations · 3.4k across the 95 of their papers we have counts for
15 papers · 1 filter
Dynamical Dark Energy, Dual Spacetime, and DESI
Sunhaeng Hur, Vishnu Jejjala, Michael J. Kavic +2
In this paper we discuss possible consequences of a manifestly non-commutative and -duality covariant formulation of string theory on dark energy, when the correspondence betwee…
Constraints on a Generalization of Geometric Quantum Mechanics from Neutrino and - Oscillations
Nabin Bhatta, Djordje Minic, Tatsu Takeuchi
Nambu Quantum Mechanics, proposed in Phys. Lett. B536, 305 (2002), is a deformation of canonical Quantum Mechanics in which the manifold over which the "phase" of an energy eigenst…
Quantum Gravity and Phenomenology: Dark Matter, Dark Energy, Vacuum Selection, Emergent Spacetime, and Wormholes
Per Berglund, De-Chang Dai, Douglas Edmonds +9
We discuss the relevance of quantum gravity to the frontier questions in high energy phenomenology: the problems of dark matter, dark energy, and vacuum selection as well as the pr…
Dynamical Dark Energy and Infinite Statistics
Vishnu Jejjala, Michael J. Kavic, Djordje Minic +1
In the CDM model, dark energy is viewed as a constant vacuum energy density, the cosmological constant in the Einstein--Hilbert action. This assumption can be relaxed in various…
On the Physics of the Minimal Length: The Question of Gauge Invariance
Lay Nam Chang, Djordje Minic, Ahmed Roman +2
In this note we discuss the question of gauge invariance in the presence of a minimal length. This contribution is prepared for the celebration of the 60th anniversary of the Yang-…
Position and momentum uncertainties of a particle in a V-shaped potential under the minimal length uncertainty relation
Zachary Lewis, Ahmed Roman, Tatsu Takeuchi
We calculate the uncertainties in the position and momentum of a particle in the 1D potential V(x)=F|x|, F>0, when the position and momentum operators obey the deformed commutation…
Position and Momentum Uncertainties of the Normal and Inverted Harmonic Oscillators under the Minimal Length Uncertainty Relation
Zachary Lewis, Tatsu Takeuchi
We analyze the position and momentum uncertainties of the energy eigenstates of the harmonic oscillator in the context of a deformed quantum mechanics, namely, that in which the co…
On the Minimal Length Uncertainty Relation and the Foundations of String Theory
Lay Nam Chang, Zachary Lewis, Djordje Minic +1
We review our work on the minimal length uncertainty relation as suggested by perturbative string theory. We discuss simple phenomenological implications of the minimal length unce…
Quantum Gravity, Dynamical Energy-Momentum Space and Vacuum Energy
Lay Nam Chang, Djordje Minic, Tatsu Takeuchi
We argue that the combination of the principles of quantum theory and general relativity allow for a dynamical energy-momentum space. We discuss the freezing of vacuum energy in su…
Quantum Gravity, Torsion, Parity Violation and all that
Laurent Freidel, Djordje Minic, Tatsu Takeuchi
We discuss the issue of parity violation in quantum gravity. In particular, we study the coupling of fermionic degrees of freedom in the presence of torsion and the physical meanin…
Hydrogen-atom spectrum under a minimal-length hypothesis
Sandor Benczik, Lay Nam Chang, Djordje Minic +1
The energy spectrum of the Coulomb potential with minimal length commutation relations is determined both numerically and perturb…
Classical Implications of the Minimal Length Uncertainty Relation
Sandor Benczik, Lay Nam Chang, Djordje Minic +3
We study the phenomenological implications of the classical limit of the "stringy" commutation relations [x_i,p_j]=i hbar[(1+beta p^2) delta_{ij} + beta' p_i p_j]. In particular, w…
Short Distance vs. Long Distance Physics: The Classical Limit of the Minimal Length Uncertainty Relation
Sandor Benczik, Lay Nam Chang, Djordje Minic +3
We continue our investigation of the phenomenological implications of the "deformed" commutation relations [x_i,p_j]=i hbar[(1 + beta p^2) delta_{ij} + beta' p_i p_j]. These commut…
The Effect of the Minimal Length Uncertainty Relation on the Density of States and the Cosmological Constant Problem
Lay Nam Chang, Djordje Minic, Naotoshi Okamura +1
We investigate the effect of the minimal length uncertainty relation, motivated by perturbative string theory, on the density of states in momentum space. The relation is implement…
Exact Solution of the Harmonic Oscillator in Arbitrary Dimensions with Minimal Length Uncertainty Relations
Lay Nam Chang, Djordje Minic, Naotoshi Okamura +1
We determine the energy eigenvalues and eigenfunctions of the harmonic oscillator where the coordinates and momenta are assumed to obey the modified commutation relations [x_i,p_j]…