527 citations · 624 across the 10 of their papers we have counts for
4 papers · 2 filters
Cloning of orthogonal mixed states entails irreversibility
Michal Horodecki, Aditi Sen De, Ujjwal Sen
Orthogonal pure states can be cloned as well as deleted. However if there is an initial disorder in the system, that is for orthogonal mixed states, one cannot perform deletion. An…
No-deleting and no-cloning principles as consequences of conservation of quantum information
Michal Horodecki, Ryszard Horodecki, Aditi Sen De +1
We show that the no-deleting and no-cloning principles are implications of information conservation principle. This is unlike in classical physics, where cloning and deleting are p…
Compressing compound states
Michal Horodecki, Pawel Horodecki, Jonathan Oppenheim
Quantum compression can be thought of not only as compression of a signal, but also as a form of cooling. In this view, one is interested not in the signal, but in obtaining purity…
Optimal strategy for a single-qubit gate and trade-off between opposite types of decoherence
Robert Alicki, Michal Horodecki, Pawel Horodecki +3
We study reliable quantum information processing (QIP) under two different types of environment. First type is Markovian exponential decay, and the appropriate elementary strategy…