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37 papers · 1 filter
Coherent-state optical qudit cluster state generation and teleportation via homodyne detection
Jaewan Kim, Juhui Lee, Se-Wan Ji +3
Defining a computational basis of pseudo-number states, we interpret a coherent state of large amplitude, , as a qudit --- a -level quantum system --- in a s…
Inflation with a Weyl term, or ghosts at work
Nathalie Deruelle, Misao Sasaki, Yuuiti Sendouda +1
In order to assess the role of ghosts in cosmology, we study the evolution of linear cosmological perturbations during inflation when a Weyl term is added to the action. Our main r…
Polarization of prompt J/psi in pp -> J/psi+X at sqrt{s}=200 GeV
Hee Sok Chung, Seyong Kim, Jungil Lee +1
Within the framework of the nonrelativistic QCD factorization approach, we compute the cross section and polarization of prompt J/psi produced from proton-proton collisions at the…
Classification of non-degenerate projective varieties with non-zero prolongation and application to target rigidity
Baohua Fu, Jun-Muk Hwang
The prolongation g^{(k)} of a linear Lie algebra g \subset gl(V) plays an important role in the study of symmetries of G-structures. Cartan and Kobayashi-Nagano have given a comple…
Dark matter and a new gauge boson through kinetic mixing
Eung Jin Chun, Jong-Chul Park, Stefano Scopel
We consider a hidden sector model of dark matter which is charged under a hidden U(1)_X gauge symmetry. Kinetic mixing of U(1)_X with the Standard Model hypercharge U(1)_Y is allow…
Superactivation, unlockability, and secrecy distribution of bound information
Giuseppe Prettico, Joonwoo Bae
Bound information, a cryptographic classical analogue of bound entanglement, is defined as classical secret correlations from which no secret key can be extracted. Its existence wa…