129 research outputs found
Chaos in classical string dynamics in deformed
We consider a circular string in deformed which is localized in the center of and winds around the two
circles of deformed . We observe chaos in the phase space of the
circular string implying non-integrability of string dynamics. The chaotic
behaviour in phase space is controlled by energy as well as the deforming
parameter . We further show that the point like object exhibits
non-chaotic behaviour. Finally we calculate the Lyapunov exponent for both
extended and point like object in support of our first result.Comment: 15 page
Finite Size Effect from Classical Strings in deformed AdS S
We study the finite size effect of rigidly rotating and spinning folded
strings in background. We calculate the leading
order exponential corrections to the infinite size dispersion relation of the
giant magnon, and single spike solutions. For the spinning folded strings we
write the finite size effect in terms of the known Lambert -function.Comment: to appear in JHE
Rotating and Orbiting Strings in Dp-brane background
We probe the open fundamental strings in Dp-brane (p=1, 3, 5) backgrounds and
find new classes of rotating and orbiting string solutions. We show that for
various worldsheet embedding ansatz we get solutions of the string equations of
motion that correspond to the well known giant magnon and single spikes, in
addition to few new solutions corresponding to the orbiting strings. We make a
systematic study of both rigidly rotating and orbiting strings in D1, D3 and
D5-brane backgrounds.Comment: 27 page
- …