62 citations · 192 across the 13 of their papers we have counts for
13 papers
Private quantum channels for multi-photon pulses and unitary k-designs
Jan Bouda, Michal Sedlák, Mario Ziman
We address the question of existence of private quantum channel for qubits encoded in polarization degrees of freedom of a photon, that remains secure even if multi-photon (instead…
General measurements with limited resources and their application to quantum unambiguous state discrimination
Daniel Reitzner, Jan Bouda
In this report, we present a framework for implementing an arbitrary -outcome generalized quantum measurement (POVM) on an -qubit register as a sequence of two-outcome measur…
Proceedings 11th Doctoral Workshop on Mathematical and Engineering Methods in Computer Science
Jan Bouda, Lukáš Holík, Jan Kofroň +2
MEMICS provides a forum for doctoral students interested in applications of mathematical and engineering methods in computer science. Besides a rich technical programme (including…
Device-independent randomness extraction for arbitrarily weak min-entropy source
Jan Bouda, Marcin Pawlowski, Matej Pivoluska +1
Expansion and amplification of weak randomness plays a crucial role in many security protocols. Using quantum devices, such procedure is possible even without trusting the devices…
Weak randomness completely trounces the security of QKD
Jan Bouda, Matej Pivoluska, Martin Plesch +1
In usual security proofs of quantum protocols the adversary (Eve) is expected to have full control over any quantum communication between any communicating parties (Alice and Bob).…
Encryption with Weakly Random Keys Using Quantum Ciphertext
J. Bouda, M. Pivoluska, M. Plesch
The lack of perfect randomness can cause significant problems in securing communication between two parties. McInnes and Pinkas proved that unconditionally secure encryption is imp…