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9 papers · 2 filters
Probabilistic Super Dense Coding
A. K. Pati, P. Parashar, P. Agrawal
We explore the possibility of performing super dense coding with non-maximally entangled states as a resource. Using this we find that one can send two classical bits in a probabil…
Quantum algorithm to distinguish Boolean functions of different weights
Samuel L. Braunstein, Byung-Soo Choi, Subhamoy Maitra +3
We exploit Grover operator of database search algorithm for weight decision algorithm. In this research, weight decision problem is to find an exact weight w from given two weights…
A completely entangled subspace of maximal dimension
B. V. Rajarama Bhat
A completely entangled subspace of a tensor product of Hilbert spaces is a subspace with no non-trivial product vector. K. R. Parthasarathy determined the maximum dimension possibl…
On Estimating the State of a Finite Level Quantum System
K. R. Parthasarathy
We revisit the problem of mutually unbiased measurements in the context of estimating the unknown state of a -level quantum system, first studied by W. K. Wootters and B. D. fie…
Effective-mass Schroedinger equation and generation of solvable potentials
B. Bagchi, P. Gorain, C. Quesne +1
A one-dimensional Schrödinger equation with position-dependent effective mass in the kinetic energy operator is studied in the framework of an algebra. New mass-deformed…
On the maximal dimension of a completely entangled subspace for finite level quantum systems
K. R. Parthasarathy
Let be a finite dimensional complex Hilbert space of dimension associated with a finite level quantum system for . A subspace $S \su…