12 citations · 71 across the 27 of their papers we have counts for
14 papers · 1 filter
Casimir energy of an open string with angle-dependent boundary condition
A. Jahan, I. Brevik
We consider an open string with ends laying on the two different solid beams (rods). This set-up is equivalent to two scalar fields with a set of constraints at their end-points. W…
Vacuum Energy of a Non-relativistic String with Nontrivial Boundary Condition
A. Jahan, S. Sukhasena
We derive the partition function of a non-relativistic quantum string which its ends are allowed to freely slide on the two angled straight solid rods. We first derive the classica…
Vacuum Persistence Amplitude and Gravitational Potential in Gravity
A. Jahan, S. Heydarnezhad
The source theory provides a straightforward way to obtain the Newton's potential upon establishing the vacuum-to-vacuum transition amplitude in quantized Einstein theory of gravit…
Anharmonic Noncommutative Oscillator at Finite Temperature
H. Sarvari Karaj-Abad, A. Jahan
Classical and quantum anharmonic noncommutative oscillators with quartic self-interacting potential are considered and the effect of self-interaction term on the free energy and pa…
U(1) Gauge Field in 6D Space-Time With Compact Noncommutative Dimensions: A Coherent State Approach
M. Nasseri, A. Jahan, M. Souri
We consider the U(1) gauge field defined over a six dimensional space-time with extra dimensions compactified on a noncommutative toroidal orbifold, within the context of coherent…
Cosmological Implications of a Lorentz Invariance Violating O(2) Model
A. Jahan
We derive the free energy of a Lorentz invariance violating (LIV) O(2) model, for which a non-vanishing commutator among it's momenta is supposed. Then we investigate the possible…