P. Hyllus

Complete hierarchies of efficient approximations to problems in entanglement theory

J. Eisert, M. Curty, P. Hyllus, 2004 .

Optimal entanglement witnesses for continuous-variable systems

J. Eisert, P. Hyllus, J. Eisert, 2005, quant-ph/0510077.

Differential atom interferometry beyond the standard quantum limit (10 pages)

K. Eckert, W. Ertmer, D. Bruss, 2006 .