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Exciton coherence lifetimes from electronic structure
John Parkhill, David Tempel, Alan Aspuru-Guzik
We model the coherent energy transfer of an electronic excitation within covalently linked aromatic homodimers from first-principles, to answer whether the usual models of the bath…
Nonradiative lifetimes in intermediate band materials - absence of lifetime recovery
Jacob J. Krich, Bertrand I. Halperin, Alán Aspuru-Guzik
Intermediate band photovoltaics hold the promise of being highly efficient and cost effective photovoltaic cells. Intermediate states in the band gap, however, are known to facilit…
Suppression of quantum oscillations and the dependence on site energies in electronic excitation transfer in the Fenna-Matthews-Olson trimer
G. Ritschel, J. Roden, W. T. Strunz +2
Energy transfer in the photosynthetic complex of the Green Sulfur Bacteria known as the Fenna-Matthews-Olson (FMO) complex is studied theoretically taking all three subunits (monom…
Digital Quantum Simulation of the Statistical Mechanics of a Frustrated Magnet
Jingfu Zhang, Man-Hong Yung, Raymond Laflamme +2
Many interesting problems in physics, chemistry, and computer science are equivalent to problems of interacting spins. However, most of these problems require computational resourc…
Conformation of self-assembled porphyrin dimers in liposome vesicles by phase-modulation 2D fluorescence spectroscopy
Geoffrey A. Lott, Alejandro Perdomo-Ortiz, James K. Utterback +3
By applying a phase-modulation fluorescence approach to 2D electronic spectroscopy, we studied the conformation-dependent exciton-coupling of a porphyrin dimer embedded in a phosph…
Quantum Computing Without Wavefunctions: Time-Dependent Density Functional Theory for Universal Quantum Computation
David G. Tempel, Alan Aspuru-Guzik
We prove that the theorems of TDDFT can be applied to a class of qubit Hamiltonians that are universal for quantum computation. The theorems of TDDFT applied to universal Hamiltoni…