51 citations · 289 across the 32 of their papers we have counts for
32 papers
Purcell-enhanced quantum adsorption
Dennis P. Clougherty
Cold atoms can adsorb to a surface with the emission of a single phonon when the binding energy is sufficiently small. The effects of phonon damping and adsorbent size on the adsor…
Quantum Lamb model
Dennis P. Clougherty, Nam H. Dinh
H. Lamb considered the classical dynamics of a vibrating particle embedded in an elastic medium before the development of quantum theory. Lamb was interested in how the back-action…
Variational approach to atom-membrane dynamics
Dennis P. Clougherty
Using the Dirac-Frenkel variational principle, a time-dependent description of the dynamics of a two-level system coupled to a bosonic bath is formulated. The method is applied to…
Comment on "Theory of phonon-assisted adsorption in graphene: Many-body infrared dynamics''
Dennis P. Clougherty
Two approximations used by Sengupta [Phys. Rev. B {\bf 100}, 075429 (2019)] in numerically computing the adsorption rate of cold hydrogen atoms on suspended graphene are critically…
Quantum and thermal fluctuations of a thin elastic plate
Dennis P. Clougherty, Eliot Heinrich
We consider a Hamiltonian description of the vibrations of a clamped, elastic circular plate. The Hamiltonian of this system features a potential energy with two distinct contribut…
Infrared Problem in Cold Atom Quantum Physisorption on 2D Materials
Sanghita Sengupta, Dennis P. Clougherty
Results from four different approximations to the phonon-assisted quantum adsorption rate for cold atoms on a 2D material are compared and contrasted: (1) a loop expansion (LE) bas…