38 citations · 90 across the 6 of their papers we have counts for
6 papers
Estimation of quantum channels with finite resources
Markus A. Cirone, Aldo Delgado, Dietmar G. Fischer +3
We investigate the problem of determining the parameters that describe a quantum channel. It is assumed that the users of the channel have at best only partial knowledge of it and…
Channel Estimation with Noisy Entanglement
Thorsten C. Bschorr, Dietmar G. Fischer, Matthias Freyberger
We analyze the Pauli-channel estimation with mixed nonseparable states. It turns out that within a specific range entanglement can serve as a nonclassical resource. However, this r…
Enhanced Estimation of a Noisy Quantum Channel Using Entanglement
Dietmar G. Fischer, Holger Mack, Markus A. Cirone +1
We discuss the estimation of channel parameters for a noisy quantum channel - the so-called Pauli channel - using finite resources. It turns out that prior entanglement considerabl…
Transfer of quantum states using finite resources
Dietmar G. Fischer, Holger Mack, Matthias Freyberger
We discuss the problem of transfering a qubit from Alice to Bob using a noisy quantum channel and only finite resources. As the basic protocol for the transfer we apply quantum tel…
Estimating mixed quantum states
Dietmar G. Fischer, Matthias Freyberger
We discuss single adaptive measurements for the estimation of mixed quantum states of qubits. The results are compared to the optimal estimation schemes using collective measuremen…
Enhanced Quantum Estimation via Purification
Holger Mack, Dietmar G. Fischer, Matthias Freyberger
We analyze the estimation of a finite ensemble of quantum bits which have been sent through a depolarizing channel. Instead of using the depolarized qubits directly, we first apply…