84 citations · 287 across the 41 of their papers we have counts for
41 papers
Mutually equibiased bases
Seyed Javad Akhtarshenas, Saman Karimi, Mahdi Salehi
In the framework of mutually unbiased bases (MUBs), a measurement in one basis gives \emph{no information} about the outcomes of measurements in another basis. Here, we relax the n…
Measurement sharpness and disturbance tradeoff
Nayere Saberian, Seyed Javad Akhtarshenas, Fereshte Shahbeigi
Obtaining information from a quantum system through a measurement typically disturbs its state. The postmeasurement states for a given measurement, however, are not unique and high…
Optimal quantum speed for mixed states
Ashraf Naderzadeh-ostad, Seyed Javad Akhtarshenas
The question of how fast a quantum state can evolve is considered. Using the definition of squared speed based on the Euclidean distance given in [Phys. Rev. Research, {\bf 2}, 033…
Mutually unbiased measurements with arbitrary purity
Mahdi Salehi, Seyed Javad Akhtarshenas, Mohsen Sarbishaei +1
Mutually unbiased measurements are a generalization of mutually unbiased bases in which the measurement operators need not to be rank one projectors. In a -dimension space, the…
Quantumness of quantum channels
Fereshte Shahbeigi, Seyed Javad Akhtarshenas
Quantum coherence is a fundamental aspect of quantum physics and plays a central role in quantum information science. This essential property of the quantum states could be fragile…
Quantum Fisher information matrix for unitary processes: closed relation for
Mohammad Javad Shemshadi, Seyed Javad Akhtarshenas
Quantum Fisher information plays a central role in the field of quantum metrology. In this paper we study the problem of quantum Fisher information of unitary processes. Associated…