542 citations · 3.6k across the 71 of their papers we have counts for
4 papers · 1 filter
Generalized measurements by linear elements
John Calsamiglia
I give a first characterization of the class of generalized measurements that can be exactly realized on a pair of qudits encoded in indistinguishable particles, by using only line…
Conditional beam splitting attack on quantum key distribution
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus
We present a novel attack on quantum key distribution based on the idea of adaptive absorption [calsam01]. The conditional beam splitting attack is shown to be much more efficient…
Removal of a single photon by adaptive absorption
John Calsamiglia, Stephen M. Barnett, Norbert Lütkenhaus +1
We present a method to remove, using only linear optics, exactly one photon from a field-mode. This is achieved by putting the system in contact with an absorbing environment which…
Superposition of macroscopic numbers of atoms and molecules
John Calsamiglia, Matt Mackie, Kalle-Antti Suominen
We theoretically examine photoassociation of a non-ideal Bose-Einstein condensate, focusing on evidence for a macroscopic superposition of atoms and molecules. This problem raises…