72 citations · 285 across the 29 of their papers we have counts for
8 papers · 1 filter
Classical string propagation in gravitational fields
H. K. Jassal, A. Mukherjee
The motion of a string in curved spacetime is discussed in detail. The basic formalism for string motion in Minkowski spacetime and in curved spacetime is presented. The descriptio…
String propagation near Kaluza-Klein black holes: an analytical and numerical study
H. K. Jassal, A. Mukherjee
This paper presents a detailed investigation of the motion of a string near a Kaluza-Klein black hole, using the null string expansion. The zeroth-order string equations of motion…
Analytical results for string propagation near a Kaluza-Klein black hole
H. K. Jassal, A. Mukherjee
This brief report presents analytical solutions to the equations of motion of a null string. The background spacetime is a magnetically charged Kaluza-Klein black hole. The string…
String dynamics near a Kaluza-Klein black hole
H. K. Jassal, A. Mukherjee, R. P. Saxena
The dynamics of a string near a Kaluza-Klein black hole are studied. Solutions to the classical string equations of motion are obtained using the world sheet velocity of light as a…
Analytical approach to the transition to thermal hopping in the thin- and thick-wall approximations
Hatem Widyan, A. Mukherjee, N. Panchapakesan +1
The nature of the transition from the quantum tunneling regime at low temperatures to the thermal hopping regime at high temperatures is investigated analytically in scalar field t…
Bounce solutions and the transition to thermal hopping in phi^4 theory with a phi^3 term
Hatem Widyan, A. Mukherjee, N. Panchapakesan +1
The nature of the transition from quantum tunneling at low temperatures to thermal hopping at high temperatures is investigated in a scalar field theory with cubic symmetry breakin…
Bubble formation in phi^4 theory in the thin-wall limit and beyond
Hatem Widyan, A. Mukherjee, N. Panchapakesan +1
Scalar field theory with an asymmetric potential is studied at zero temperature and high-temperature for phi^4 theory with both phi and phi^3 symmetry breaking. The equations of mo…
Duality and cosmological compactification of superstrings with unbroken supersymmetry
H. K. Jassal, A. Mukherjee, R. P. Saxena
The cosmological compactification of D=10, N=1 supergravity-super-Yang-Mills theory obtained from superstring theory is studied. The constraint of unbroken N=1 supersymmetry is imp…