ar X iv : 0 81 0 . 51 09 v 2 [ qu an t - ph ] 2 O ct 2 00 9 NP vs QMA log ( 2 )

ar X iv : 0 81 0 . 52 65 v 1 [ he p - ph ] 2 9 O ct 2 00 8 Signatures for doubly - charged Higgsinos at colliders

Several supersymmetric models with extended gauge structures predict light doubly-charged Higgsinos. Their distinctive signature at the large hadron collider is highlighted by studying their production and decay characteristics.

ar X iv : 0 71 0 . 49 09 v 2 [ as tr o - ph ] 2 9 O ct 2 00 7 The origin of galactic cosmic rays ⋆

The origin of galactic cosmic rays is one of the most interesting unsolved problems in astroparticle physics. Experimentally, the problem is attacked by a multi-disciplinary effort, namely by direct measurements of cosmic rays above the atmosphere, by air shower observations, and by the detection of TeV γ rays. Recent experimental results are presented and their implications on the contemporary...

ar X iv : 0 81 0 . 43 71 v 1 [ as tr o - ph ] 2 4 O ct 2 00 8 Welcome back , Polaris the Cepheid

For about 100 years the amplitude of the 4 d pulsation in Polaris has decreased. We present new results showing a significant increase in the amplitude based on 4.5 years of continuous monitoring from the ground and with two satellite missions.

ar X iv : 0 70 5 . 31 55 v 2 [ qu an t - ph ] 9 O ct 2 00 7 Observation of Topological and Parity - dependent Phase of m = 0 Spin States

A Ramsey interrogation scheme was used to measure the phase shift of laser-cooled Rb clocktransition pseudospins arising as a result of a reversal of a bias magnetic field, i.e., B → −B, during the interrogation. While no phase shift occurred when the reversal was sudden, the Ramsey fringes were shifted by a factor of π when the reversal was adiabatic. We thus verified the prediction that the s...

ar X iv : 0 80 8 . 10 23 v 1 [ qu an t - ph ] 7 A ug 2 00 8 CATEGORICAL QUANTUM MECHANICS