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50 papers · 1 filter
Test particle motion in a gravitational plane wave collision background
Donato Bini, Gianluca Cruciani, Andrea Lunari
Test particle geodesic motion is analysed in detail for the background spacetimes of the degenerate Ferrari-Ibanez colliding gravitational wave solutions. Killing vectors have been…
Landau Ghosts and Anti-Ghosts in Condensed Matter and High Density Hadronic Matter
S. Sivasubramanian, Y. N. Srivastava, A. Widom
It is observed that the ``ghost'' (originally discovered by Landau in quantum electro-dynamics) and its counterparts in other theories are indeed ubiquitous as they occur in a one-…
Measurement of the B0 meson lifetime with partial reconstruction of B0 --> D*- pi+ and B0 --> D*- rho+ decays
The BABAR Collaboration, B. Aubert
The neutral meson lifetime is measured with the data collected by the BaBar detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosi…
Fuzzy Nambu-Goldstone Physics
A. P. Balachandran, G. Immirzi
In spacetime dimensions larger than 2, whenever a global symmetry G is spontaneously broken to a subgroup H, and G and H are Lie groups, there are Nambu-Goldstone modes described b…
Quantum even spheres Sigma_q^2n from Poisson double suspension
F. Bonechi, N. Ciccoli, M. Tarlini
We define even dimensional quantum spheres Sigma_q^2n that generalize to higher dimension the standard quantum two-sphere of Podle's and the four-sphere Sigma_q^4 obtained in the q…
Can experiments select the configurational component of excess entropy?
Silvia Corezzi, Lucia Comez, Daniele Fioretto
We introduce an experimental method of assessing the vibrational and configurational components of the excess entropy of a liquid over crystal, based on a joined investigation of d…