Understanding the Impact of Immigration in Greater New Haven

"Understanding the Impact of Immigration in Greater New Haven," highlights the rapid demographic transformation of the region driven by immigration in the past two decades and the significant economic contributions, particularly in small business creation, of this diverse population. The report compiles data from federal, state and local government agencies, as well as information generated locally by DataHaven and The Community Foundation for Greater New Haven

Born Oppenheimer Dynamics Near Metal Surfaces

We discuss the usefulness of Born-Oppenheimer potential surfaces for nuclear dynamics for molecules strongly coupled to metal surfaces. A simple model demonstrating the construction of such surface for a molecular junction is discussed.Comment: 5 pages, 2 figure

Reply to Comment by Alexandrov and Bratkovsky [cond-mat/0603467, cond-mat/0606366]

The submitted Comment is based on using an isolated quantum dot approach to discuss the situation where the coupling to the leads is considerable (not negligible). This finite lead coupling is the situation in most molecular transport junctions. In such situations the population on the molecule is not static and dynamical effects (fluctuations) are crucial. While the discussion in [Phys. Rev. B 67, 235312 (2003)], and in the Comment may well apply for an isolated molecule, it is simply irrelevant for the very different transport situation analyzed in our original contribution.Comment: 3 pages, no figures; Original Comment [cond-mat/0603467] was submitted to Nano Letters and following our reply the editor has decided against publication; Later submission [cond-mat/0606366] is essentially a reproduction (with new title and abstract and equations rearranged) of the original Comment [cond-mat/0603467

On optical spectroscopy of molecular junctions

We compare theoretical techniques utilized for description of optical response in molecular junctions, and their application to simulate Raman spectroscopy in such systems. Strong and weak sides of the Hilbert vs. Liouville space, as well as quasiparticles vs. many-body states, formulations are discussed. Common origins of the methodologies and different approximations utilized in different formulations are identified.Comment: 17 pages, 4 figure