Swapan Kumar. Samaddar

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In a finite temperature Thomas-Fermi framework, we calculate density distributions of hot nuclei enclosed in a freeze-out volume of few times the normal nuclear volume and then construct the caloric curve, with and without inclusion of radial collective flow. In both cases, the calculated specific heats Cv show a peaked structure signalling a liquid-gas(More)
The relativistic Hartree-BCS theory is applied to study the temperature dependence of nuclear shape and pairing gap for 166Er and 170Er. For both the nuclei, we find that as temperature increases the pairing gap vanishes leading to phase transition from superfluid to normal phase as is observed in nonrelativistic calculation. The deformation evolves from(More)
The relativistic mean field theory is applied to study some exotic properties of neutron rich nuclei as recently observed, namely, extension of the drip-line for F nuclei from F to F and the appearence of a new shell closure at neutron number N = 16. We find F to be bound against one-neutron dripping but unbound only marginally for two neutron separation.(More)
Stability of nuclei beyond the drip lines in the presence of an enveloping gas of nucleons and electrons, as prevailing in the inner crust of a neutron star, is studied in the temperature-dependent Thomas-Fermi framework. A limiting asymmetry in the isospin space beyond which nuclei cannot exist emerges from the calculations. The ambient conditions like(More)
The paper describes a new architecture for implementation of 8 × 8 FDCT (Fast Discrete Cosine Transform) using Distributed Arithmetic (DA). This proposed architecture combines both DA based approaches for distributed input vector and constant coefficients. The described Combined Distributed Arithmetic based DCT (CDA-DCT) architecture has been(More)
Clustered processor, having 16 clusters with 4 PE’s in each cluster and each PE having two ALU, which can perform simultaneously, is taken. The PE’s operate in a SIMD manner. The cluster and PE can transfer data from one another [1]. 4 FDCT algorithms: namely i>Vetterli ii> Arai’s iii> Loeffler’s iv> Chen’s are taken into consideration. Our proposed 1D FDCT(More)