432 citations
- Institute for Research in Fundamental SciencesIR295 papers
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- Helsinki Institute of PhysicsFI279 papers
8 papers · 1 filter
Fubini vacua as a classical de Sitter vacua
Farhang Loran
The Fubini's idea to introduce a fundamental scale of hadron phenomena by means of dilatation non-invariant vacuum state in the frame work of a scale invariant Lagrangian field the…
Aharonov-Casher effect for spin one particles in a noncommutative space
B. Mirza, R. Narimani, M. Zarei
In this work the Aharonov-Casher (AC) phase is calculated for spin one particles in a noncommutative space. The AC phase has previously been calculated from the Dirac equation in a…
Cancellation of soft and collinear divergences in noncommutative QED
B. Mirza, M. Zarei
In this paper, we investigate the behavior of non-commutative IR divergences and will also discuss their cancellation in the physical cross sections. The commutative IR (soft) dive…
Perfect and Imperfect Gauge Fixing
A. Shirzad
Gauge fixing may be done in different ways. We show that using the chain structure to describe a constrained system, enables us to use either a perfect gauge, in which all gauged d…
Extensivity and nonextensivity of two-parameter entropies
Somayeh Asgarani, Behrouz Mirza
In this paper, we investigate two-parameter entropies and obtain some conditions for their extensivity. By using a generalized , correlations for subsystems are rela…
Kahler quantization of H*(T2,R) and modular forms
Farhang Loran
Kahler quantization of H1(T2,R) is studied. It is shown that this theory corresponds to a fermionic sigma-model targeting a noncommutative space. By solving the complex-structure m…