Effects of Quantum Vacuum Fluctuations of the Electric Field on DNA Condensation (2009)
Iorio, Alfredo, Sen, Samik, Sen, Siddhartha
By assuming that not only counter-ions but DNA molecules as well are thermally distributed according to a Boltzmann law, we propose a modified Poisson-Boltzmann equation at the classical level as...
Do quantum effects hold together DNA condensates? (2008)
Iorio, Alfredo, Sen, Samik, Sen, Siddhartha
The classical electrostatic interaction between DNA molecules in water in the presence of counterions is reconsidered and we propose it is governed by a modified Poisson-Boltzmann equation. Quantum...
Chiral Dirac fermions on the lattice using Geometric Discretisation (2003)
De Beauce, Vivien, Sen, Samik, Sexton, James C.
A new approach to the problem of doubling is presented with the Dirac-Kahler (DK) theory as a starting point and using Geometric Discretisation providing us with a new way of extracting the Dirac...
A Cubic Whitney and Further Developments in Geometric Discretisation (2003)
Geometric discretisation draws analogies between discrete objects and operations on a complex with continuum ones on a manifold. We generalise the theory to the cubic case and incorporate metric, by...
Chiral Dirac Fermions on the Lattice using Geometric Discretisation (2003)
We propose a discretisation scheme based on the Dirac-Kahler formalism (DK) in which the algebraic relations between continuum operators ${\wedge, d, \star}$ are captured by their discrete analogues,...
Semiclassical Shor's Algorithm (2003)
Giorda, Paolo, Iorio, Alfredo, Sen, Samik, Sen, Siddhartha
We propose a semiclassical version of Shor's quantum algorithm to factorize integer numbers, based on spin-1/2 SU(2) generalized coherent states. Surprisingly, we find evidences that the algorithm's...
A geometric discretisation scheme applied to the Abelian Chern-Simons theory (2000)
Sen, Samik, Sen, Siddhartha, Sexton, James C., Adams, David H.
We give a detailed general description of a recent geometrical discretisation scheme and illustrate, by explicit numerical calculation, the scheme's ability to capture topological features. The...