134 citations · 2.5k across the 122 of their papers we have counts for
10 papers · 1 filter
Coherent Phase Control in Closed and Open Quantum Systems: A General Master Equation Approach
Leonardo A. Pachon, Li Yu, Paul Brumer
The underlying mechanisms for one photon phase control are revealed through a master equation approach. Specifically, two mechanisms are identified, one operating on the laser time…
The Nature of Quantum States Created by One Photon Absorption: Pulsed Coherent vs. Pulsed Incoherent Light
Alex C. Han, Moshe Shapiro, Paul Brumer
We analyze electronically excited nuclear wave functions and their coherence when subjecting a molecule to the action of natural, pulsed incoherent solar-like light, and to that of…
Ground state cooling is not possible given initial system-thermal bath factorization
Lian-Ao Wu, Dvira Segal, Paul Brumer
In this paper we prove that a fundamental constraint on the cooling dynamic implies that it is impossible to cool, via a unitary system-bath quantum evolution, a system that is emb…
Incoherent Excitation of Thermally Equilibrated Open Quantum Systems
Leonardo A. Pachon, Paul Brumer
Under natural conditions, excitation of biological molecules, which display non-unitary open system dynamics, occurs via incoherent processes such as temperature changes or irradia…
Electronic Energy Transfer: Localized Operator Partitioning of Electronic Energy in Composite Quantum Systems
Yaser R. Khan, Paul Brumer
A Hamiltonian based approach using spatially localized projection operators is introduced to give precise meaning to the chemically intuitive idea of the electronic energy on a qua…
Quantum Driven Dissipative Parametric Oscillator in a Blackbody Radiation Field
Leonardo A. Pachón, Paul Brumer
We consider the general open system problem of a charged quantum oscillator confined in a harmonic trap, whose frequency can be arbitrarily modulated in time, that interacts with b…
Overlapping Resonances Interference-induced Transparency: The Photoexcitation Spectrum of Pyrazine
Timur Grinev, Moshe Shapiro, Paul Brumer
The phenomenon of "overlapping resonances interference-induced transparency" (ORIT) is introduced and studied in detail for the photoexcitation of cold pyrazine (…
Temperature crossover of decoherence rates in chaotic and regular bath dynamics
A. S. Sanz, Y. Elran, P. Brumer
The effect of chaotic bath dynamics on the decoherence of a quantum system is examined for the vibrational degrees of freedom of a diatomic molecule in a realistic, constant temper…
Computational Methodologies and Physical Insights into Electronic Energy Transfer in Photosynthetic Light-Harvesting Complexes
Leonardo A. Pachon, Paul Brumer
We examine computational techniques and methodologies currently in use to explore electronic excitation energy transfer in the context of light-harvesting complexes in photosynthet…
On-demand production of entangled photon pairs via quantum-dot biexciton control
Guy Bensky, Selvakumar V. Nair, Harry E. Ruda +3
A pulsed laser scenario, designed to prepare an appropriately chosen self-assembled quantum dot with 100% population in a biexciton state, is proposed. The ensuing radiative emissi…