arXiv subjects

H. Razmi

Publications and source records attributed to H. Razmi.

24 records · Page 2Linked to original sources

arXiv2012

Mathematical and Physical Examination of the Locality Condition in Bell's Theorem

Using the Clauser-Horne model of Bell's theorem, the locality condition is examined and it is shown the corresponding formulation is equivalent to a factorization process consisting of three stages. The first stage is introduced based on the conditional probability definition in classical theory of probability and the other two stages are based on previously-known relations named as outcome and parameter independence conditions.

quant-ph↗

arXiv2007

Brane-World Black Hole Solutions via a Confining Potential

Using a confining potential, we consider spherically symmetric vacuum (static black hole) solutions in a brane-world scenario. Working with a constant curvature bulk, two interesting cases/solutions are studied. A Schwarzschild-de Sitter black hole solution similar to the standard solution in the presence of a cosmological constant is obtained which confirms the idea that an extra term in the field equations on the brane can play the role of a positive cosmological constant and may be used to account for the accelerated expansion of the universe. The other solution is one in which we can have a proper potential to explain the galaxy rotation curves without assuming the existence of dark matter and without working with new modified theories (modified Newtonian dynamics).

gr-qc↗

arXiv2000

The Fundamental Commutator For Massless Particles

It is discussed that the usual Heisenberg commutation relation (CR) is not a proper relation for massless particles and then an alternative is obtained. The canonical quantization of the free electromagnetic(EM)fields based on the field theoretical generalization of this alternative is carried out. Without imposing the normal ordering condition,the vacuum energy is automatically zero.This can be considered as a solution to the EM fields vacuum catastrophe and a step toward managing the cosmologial constant problem at least for the EM fields contribution to the state of vacuum.

gr-qc↗

arXiv1999

The Quantization of Free EM Fields: An Alternative Approach to solve the Vacuum Catastrophe

It is shown that the canonical quantum field theory of radiation based on the field theoretical generalization of a recently proposed [1] commutation relation between position and momentum operators of massless particles leads to zero vacuum energy. This may be considered as a step toward the solution of the cosmological constant problem at least for the electromagnetic (EM) field's contribution.

quant-ph↗

arXiv1998

Locality Is An Unnecessary Assumption of Bell's Theorem

Without imposing the locality condition,it is shown that quantum mechanics cannot reproduce all the predictions of a special stochastic realistic model used in certain spin-correlation experiments.This shows that the so-called locality condition is an unnecessary assumption of Bell's theorem.

quant-ph↗

arXiv1998

An Alternative Commutation Relation Between Position and Momentum Operators of Massless Particles

It seems that the problem of finding a suitable position operator for photon has been solved in a recently published work which is based on a new commutation relation between position and momentum operators of massless particles[1]. Although the authors of [1] have presented a classical reasoning in favour of the new commutator,here we are going to find this new commutator based on a quantum mechanical argument.

quant-ph↗