1204.5183 (Manuel Endres et al.)

The `Higgs' Amplitude Mode at the Two-Dimensional Superfluid-Mott
Insulator Transition
   [PDF]

Manuel Endres, Takeshi Fukuhara, David Pekker, Marc Cheneau, Peter Schauß, Christian Gross, Eugene Demler, Stefan Kuhr, Immanuel Bloch

1204.5235 (Kimball A. Milton et al.)

PT-Symmetric Quantum Electrodynamics and Unitarity    [PDF]

Kimball A. Milton, E. K. Abalo, Prachi Parashar, Nima Pourtolami, J. Wagner

1204.5330 (Fabian Steinlechner et al.)

A high-brightness source of polarization-entangled photons optimized for
applications in free space
   [PDF]

Fabian Steinlechner, Pavel Trojek, Marc Jofre, Henning Weier, Daniel Perez, Thomas Jennewein, Rupert Ursin, John Rarity, Morgan W. Mitchell, Juan P. Torres, Harald Weinfurter, Valerio Pruneri