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Modeling Time's Arrow
(MDPI, 2012-04)
Quantum gravity, the initial low entropy state of the Universe, and the problem of time are interlocking puzzles. In this article, we address the origin of the arrow of time from a cosmological perspective motivated by a ...
Some Mutant Forms of Quantum Mechanics
(Amer Inst Physics, 2012-01-01)
We construct a ‘mutant’ form of quantum mechanics on a vector space over the finite Galois field GF(q). We find that the correlations in our model do not violate the Clauser-Horne-Shimony-Holt (CHSH) version of Bell’s ...
Stringy Bubbles Solve de Sitter Troubles
(MDPI, 2021-09-28)
Finding four-dimensional de Sitter spacetime solutions in string theory has been a vexing quest ever since the discovery of the accelerating expansion of the universe. Building on a recent analysis of bubble-nucleation in ...
Bell's Inequalities, Superquantum Correlations, and String Theory
(Hindawi Publishing Corporation, 2011)
We offer an interpretation of superquantum correlations in terms of a “doubly” quantum theory.We argue that string theory, viewed as a quantum theory with two deformation parameters, the string tension α', and the string ...
On the Minimal Length Uncertainty Relation and the Foundations of String Theory
(Hindawi Publishing Corporation, 2011)
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 uncertainty relation and then argue that the ...
Fine Structure of Dark Energy and New Physics
(Hindawi Publishing Corporation, 2007)
Following our recent work on the cosmological constant problem, in this letter we make a specific proposal regarding the fine structure (i.e., the spectrum) of dark energy. The proposal is motivated by a deep analogy between ...
Intrinsic non-commutativity of closed string theory
(Springer, 2017-09-14)
We show that the proper interpretation of the cocycle operators appearing in the physical vertex operators of compactified strings is that the closed string target is non-commutative. We track down the appearance of this ...
B-decay anomalies and scalar leptoquarks in unified Pati-Salam models from noncommutative geometry
(Springer, 2018-09-19)
Motivated by possible scalar-leptoquark explanations of the recently reported B-decay anomalies, we investigate whether the required leptoquarks can be accommodated within models based on noncommutative geometry (NCG). The ...
Theory of high-temperature superconductivity and effective gravity
(American Physical Society, 2008-12-01)
We argue that an approach involving effective gravity could play a crucial role in elucidating the properties of the high-temperature superconducting materials. In particular we propose that the high critical temperature ...
Robustness of Topologically Protected Surface States in Layering of Bi₂Te₃ Thin Films
(American Physical Society, 2010-10-27)
Bulk Bi<sub>2</sub>Te<sub>3</sub> is known to be a topological insulator. We investigate surface states of Bi<sub>2</sub>Te<sub>3</sub>(111) thin films of one to six quintuple layers using density-functional theory including ...