Trapping, self-trapping and the polaron family
نویسندگان
چکیده
منابع مشابه
Polaron Self-trapping in a Honeycomb Net
Small polaron behavior in a two dimensional honeycomb net is studied by applying the strong coupling perturbative method to the Holstein molecular crystal model. We find that small optical polarons can be mobile also if the electrons are strongly coupled to the lattice. Before the polarons localize and become very heavy, there is infact a window of e-ph couplings in which the polarons are small...
متن کاملLENR: Superfluids, Self-Trapping and Non-Self-Trapping States
LENR ion band state models involve deuteron many-body systems resembling superfluids. The physics of atom Bose-Einstein condensates in optical lattices teaches that superfluid behavior occurs when the potential barriers between adjacent potential wells permit high tunneling rates and the well potentials are shallow. These superfluids have fractional occupation of individual wells. Well periodic...
متن کاملLocalisation versus self-trapping: Polaron formation in the Anderson-Holstein model
The polaron concept, first introduced by Landau [1], is one of the main pillars on which the theoretical analysis of materials with strong electron-phonon (EP) coupling rests. In these compounds, the coupling between the electron and the lattice leads to a lattice deformation whose potential tends to bind the electron to the deformed region of the crystal. This process, which has been called se...
متن کاملSelf–trapping of the Dilaton
The dilaton in three dimensions does not roll. Witten’s conjecture that duality between theories in three and four dimensions solves the cosmological constant problem thus may also solve the dilaton problem in string theory.
متن کاملSelf-trapping of bright rings.
We present experimental observations of self-trapped rings carrying zero topological charge, along with simulations that display the self-focusing dynamics of the rings and their stability features in materials with saturable nonlinearities.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2007
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/19/25/255208