07.50.+n No-go theorems

Creating a Superposition of Unknown Quantum States

Tue, 2016-06-07 13:20 - Jordi Tura

Date:

2015-06-03 - 2016-03-17

Author(s):

Michał Oszmaniec, Andrzej Grudka, Michał Horodecki, Antoni Wójcik

Reference:

Phys. Rev. Lett. 116, 110403

URL:

http://dx.doi.org/10.1103/PhysRevLett.116.110403

The superposition principle is one of the landmarks of quantum mechanics. The importance of quantum superpositions provokes questions about the limitations that quantum mechanics itself imposes on the possibility of their generation. In this work, we systematically study the problem of the creation of superpositions of unknown quantum states.