Narasimhan, S. L., Krishna, P. S. R., Ponmurugan, M., Murthy, K. P. N.
We have explained in detail why the canonical partition function of Interacting Self Avoiding Walk (ISAW), is exactly equivalent to the configurational average of the weights associated with growth...
Mishra, S. K., Choudhury, N., Chaplot, S. L., Krishna, P. S. R., Mittal, R.
Neutron diffraction studies using powder samples have been used to understand the complex sequence of low temperature phase transitions of NaNbO3 in the temperature range from 12 K-350 K. Detailed...
Coil-Globule transition of a single short polymer chain - an exact enumeration study (2007)
Ponmurugan, M., Narasimhan, S. L., Krishna, P. S. R., Murthy, K. P. N.
We present an exact enumeration study of short SAWs in two as well as three dimensions that addresses the question, `what is the shortest walk for which the existence of all the three phases - coil,...
A formalism for studying long-range correlations in many-alphabets sequences (2004)
Narasimhan, S. L., Nathan, Joseph A., Krishna, P. S. R., Murthy, K. P. N.
We formulate a mean-field-like theory of long-range correlated $L$-alphabets sequences, which are actually systems with $(L-1)$ independent parameters. Depending on the values of these parameters,...
Neutron Diffraction Studies on La2-xDyxCa2xBa2Cu4+2xOz Superconductors (2004)
Rayaprol, S., Parmar, Rohini, Kuberkar, D. G., Chakraborty, Keka R., Krishna, P. S. R., Ramanadham, M.
Structural studies on Dy-substituted La-2125 type superconductors have been carried out by neutron diffraction experiments at room temperature using a monochromatic neutron beam of wavelength lambda...
Structural and Magnetic Studies on La2-xDyxCa2xBa2Cu4+2xOz Type Superconducting Oxides (2004)
Rayaprol, S., Kundaliya, Darshan C., Thaker, C. M., Kuberkar, D. G., Chakraborty, Keka R., Krishna, P. S. R., ...
The La-2125 type La2-xDyxCa2xBa2Cu4+2xOz (0.1 < x < 0.5; LDBO) compounds have been synthesized and studied for their structural and superconducting properties by room temperature neutron diffraction,...
Interacting Growth Walk - a model for hyperquenched homopolymer glass? (2002)
Narasimhan, S. L., Krishna, P. S. R., Rajarajan, A. K., Murthy, K. P. N.
We show that the compact self avoiding walk configurations, kinetically generated by the recently introduced Interacting Growth Walk (IGW) model, can be considered as members of a canonical ensemble...
Interacting Growth Walk on a honeycomb lattice (2002)
Narasimhan, S. L., Krishna, P. S. R., Ramanadham, M., Murthy, K. P. N., Sridhar, V.
The Interacting Growth Walk (IGW) is a kinetic algorithm proposed recently for generating long, compact, self avoiding walks. The growth process in IGW is tuned by the so called growth temperature...
Protein folding simulations with Interacting Growth Walk model (2001)
Narasimhan, S. L., Krishna, P. S. R., Ramanadham, M., Murthy, K. P. N., Chidambaram, R.
We demonstrate that the recently proposed interacting growth walk (IGW) model, modified for generating self-avoiding heteropolymers, proves to be a simpler alternative to the other Monte Carlo...
Comment on "Peculiar Scaling of Self-Avoiding Walk Contacts" (2001)
Narasimhan, S. L., Krishna, P. S. R., Murthy, K. P. N., Ramanadham, M.
We demonstrate that the recently proposed Interacting Growth Walk (cond-mat/0108097) does not have the contact-scaling behaviour of Self-Avoiding Walk (M. Baiesi, E. Orlandini and A. L. Stella, Phys....
A new monte carlo algorithm for growing compact Self Avoiding Walks (2001)
Narasimhan, S. L., Krishna, P. S. R., Murthy, K. P. N., Ramanadham, M.
We propose an algorithm based on local growth rules for kinetically generating self avoiding walk configurations at any given temperature. This algorithm, called the Interacting Growth Walk (IGW)...
Sticky Spheres, Entropy barriers and Non-equilibrium phase transitions (2001)
Narasimhan, S. L., Krishna, P. S. R., Murthy, K. P. N.
A sticky spheres model to describe slow dynamics of a non-equilibrium system is proposed. The dynamical slowing down is due to the presence of entropy barriers. We present an exact mean field...
Neutron scattering studies on Ge20Se80-xMx (M=Bi and Sb) (x=0.6,12) glasses (1995)
Krishna, P S R, Dasannacharya, B A, Howells, W S, Hannon, A C
Less background, better contrast by cooling analyser crystals (1994)
Carlile, C J, Adams, M A, Krishna, P S R, Prager, M, Shibata, K, Westerhuijs, P
Carlile, C J, Adams, M A, Forsyth, J B, Krishna, P S R
p I-73, RAL report 94-025 (1994)
Less background, better contrast by cooling analyser crystals (1994)
Carlile, C J, Adams, M A, Krishna, P S R, Prager, M, Shibata, K, Westerhuijs, P
p I-106, RAL report 94-025 (1994)
Forsyth, J B, Carlile, C J, Krishna, P S R
ILL Workshop on magnetism with x-rays & neutrons, January 1993
Cold neutrons on pulsed sources for high resolution spectroscopy & long d-spacing diffraction (1993)
Carlile, C J, Adams, M A, Forsyth, J B, Krishna, P S R
Proc of Expert Meeting on the Austron Project, p149, Vienna (1993)