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- Indian Institute of Science BangaloreIN1 paper
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quant-ph2005★ 2 cited
Hadamard type operations for qubits
Arpita Maitra, Preeti Parashar
We obtain the most general ensemble of qubits, for which it is possible to design a universal Hadamard gate. These states when geometrically represented on the Bloch sphere, give a…
quant-ph2004
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…
quant-ph2004★ 1 cited
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…