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27 papers · 1 filter
Deformation of a smooth Deligne-Mumford stack via differential graded Lie algebra
Yasunari Nagai, Fumitoshi Sato
For a smooth Deligne-Mumford stack over $\CC$, we define its associated Kodaira-Spencer differential graded Lie algebra and show that the deformation functor of the stack is isomor…
A Brownian Energy Depot Model of the Basilar Membrane Oscillation with a Braking Mechanism
Yong Zhang, Chul Koo Kim, Kong-Ju-Bock Lee +1
High auditory sensitivity, sharp frequency selectivity, and otoacoustic emissions are signatures of active amplification of the cochlea. The human ear can also detect very large am…
New Generation of Massless Dirac Fermions in Graphene under External Periodic Potentials
Cheol-Hwan Park, Li Yang, Young-Woo Son +2
We show that new massless Dirac fermions are generated when a slowly varying periodic potential is applied to graphene. These quasiparticles, generated near the supercell Brillouin…
N-vaton
Qing-Guo Huang
In general there are a large number of light scalar fields in the theories going beyond standard model, such as string theory, and some of them can be taken as the candidates of cu…
Quark-gluon mixed condensate of the QCD vacuum in Holographic QCD
Hyun-Chul Kim, Youngman Kim
We investigate the quark-gluon mixed condensate based on an AdS/QCD model. Introducing a holographic field dual to the operator for the quark-gluon mixed condensate, we obtain the…
Electron Beam Supercollimation in Graphene Superlattices
Cheol-Hwan Park, Young-Woo Son, Li Yang +2
Although electrons and photons are intrinsically different, importing useful concepts in optics to electronics performing similar functions has been actively pursued over the last…