222 citations · 797 across the 21 of their papers we have counts for
22 papers
Exciton-phonon Coupling Controls Exciton-polaron Formation and Hot Carrier Relaxation in Rigid Dion-Jacobson Type Two-Dimensional Perovskites
Somnath Biswas, Fatimah Alowa, Ruyan Zhao +5
The efficiency of two-dimensional Dion-Jacobson-type materials relies on the complex interplay between electronic and lattice dynamics; however, questions remain about the function…
Femtosecond Photophysics of Molecular Polaritons
Francesca Fassioli, Kyu Hyung Park, Sarah E. Bard +1
Molecular polaritons are hybrid states of photonic and molecular character that form when molecules strongly interact with light. Strong coupling tunes energy levels and importantl…
Ultrafast Dynamics of the Topological Semimetal GdSbTe In the Presence and Absence of a Charge Density Wave
Robert J. Kirby, Angela Montanaro, Francesca Giusti +8
Time-resolved dynamics in charge-density-wave materials have revealed interesting out-of-equilibrium electronic responses. However these are typically only performed in a single ma…
A telecom O-band emitter in diamond
Sounak Mukherjee, Zi-Huai Zhang, Daniel G. Oblinsky +15
Color centers in diamond are promising platforms for quantum technologies. Most color centers in diamond discovered thus far emit in the visible or near-infrared wavelength range,…
Polariton Enhanced Free Charge Carrier Generation in Donor-Acceptor Cavity Systems by a Second-Hybridization Mechanism
Weijun Wu, Andrew E. Sifain, Courtney A. Delpo +1
Cavity quantum electrodynamics has been studied as a potential approach to modify free charge carrier generation in donor-acceptor heterojunctions because of the delocalization and…
Electronic Energy Migration in Microtubules
Aarat P. Kalra, Alfy Benny, Sophie M. Travis +10
The repeating arrangement of tubulin dimers confers great mechanical strength to microtubules, which are used as scaffolds for intracellular macromolecular transport in cells and e…
Photoinduced Band Renormalization Effects in ZrSiS Topological Nodal-line Semimetal
Somnath Biswas, Ioannis Petrides, Robert J. Kirby +7
Out-of-equilibrium effects provide an elegant pathway to probing and understanding the underlying physics of topological materials. Creating exotic states of matter using ultrafast…
Dielectric control of reverse intersystem crossing in thermally-activated delayed fluorescence emitters
Alexander J. Gillett, Anton Pershin, Raj Pandya +12
Thermally-activated delayed fluorescence (TADF) enables organic semiconductors with charge transfer (CT)-type excitons to convert dark triplet states into bright singlets via a rev…
Toward Witnessing Molecular Exciton Entanglement from Spectroscopy
Andrew E. Sifain, Francesca Fassioli, Gregory D. Scholes
Entanglement is a defining feature of quantum mechanics that can be a resource in engineered and natural systems, but measuring entanglement in experiment remains elusive especiall…
Signature of an Ultrafast Photo-Induced Lifshitz Transition in the Nodal-Line Semimetal ZrSiTe
Robert J. Kirby, Lukas Muechler, Sebastian Klemenz +6
Here we report an ultrafast optical spectroscopic study of the nodal-line semimetal ZrSiTe. Our measurements reveal that, converse to other compounds of the family, the sudden inje…
Transient Drude Response Dominates Near-Infrared Pump-Probe Reflectivity in Nodal-Line Semimetals ZrSiS and ZrSiSe
Robert J. Kirby, Austin Ferrenti, Caroline Weinberg +6
The ultrafast optical response of two nodal-line semimetals, ZrSiS and ZrSiSe, was studied in the near-infrared using transient reflectivity. The two materials exhibit similar resp…
Generalization of the hierarchical equations of motion theory for efficient calculations with arbitrary correlation functions
Tatsushi Ikeda, Gregory D. Scholes
The hierarchical equations of motion (HEOM) theory is one of the standard methods to rigorously describe open quantum dynamics coupled to harmonic environments. Such a model is use…
Local protein solvation drives direct down-conversion in phycobiliprotein PC645 via incoherent vibronic transport
Samuel M. Blau, Doran I. G. Bennett, Christoph Kreisbeck +2
Mechanisms controlling excitation energy transport (EET) in light-harvesting complexes remain controversial. Following the observation of long-lived beats in two-dimensional electr…
Anisotropic conjugated polymer chain conformation tailors the energy migration in nanofibers
Andrea Camposeo, Ryan D. Pensack, Maria Moffa +5
Conjugated polymers are complex multi-chromophore systems, with emission properties strongly dependent on the electronic energy transfer through active sub-units. Although the pack…
Thermal light cannot be represented as a statistical mixture of single pulses
Aurélia Chenu, Agata M. Brańczyk, Gregory D. Scholes +1
We ask whether or not thermal light can be represented as a mixture of single broadband coherent pulses. We find that it cannot. Such a mixture is simply not rich enough to mimic t…
A Method of Developing Analytical Multipartite Delocalization Measures for Mixed W-like States
Cathal Smyth, Gregory D. Scholes
We present a method of developing analytical measures of -partite delocalization in arbitrary -body W-like states, otherwise known as mixed states in the single excitation su…
Two-dimensional electronic spectroscopy for the quantum-optics enthusiast
Agata M. Branczyk, Daniel B. Turner, Gregory D. Scholes
Recent interest in the role of quantum mechanics in the primary events of photosynthetic energy transfer has led to a convergence of nonlinear optical spectroscopy and quantum opti…
Dynamical transitions in Markovian exciton transport
Hoda Hossein-Nejad, Alexandra Olaya-Castro, Francesca Fassioli +1
The large deviation theory has recently been applied to open quantum systems to uncover dynamical crossovers in the space of quantum trajectories associated to Markovian evolutions…
Efficiency scaling of non-coherent upconversion
Jochen Zimmermann, Roberto Mulet, Thomas Wellens +2
A very promising approach to obtain efficient upconversion of light is the use of triplet-triplet annihilation of excitations in molecular systems. In real materials, besides upcon…
The fundamental role of quantized vibrations in coherent light harvesting by cryptophyte algae
Avinash Kolli, Edward J. O'Reilly, Gregory D. Scholes +1
The influence of fast vibrations on energy transfer and conversion in natural molecular aggregates is an issue of central interest. This article shows the important role of high-en…
An excitation-dependent four-level model for quantum entanglement in photosynthetic systems
Chi-Han Chang, Agata M. Branczyk, Gregory D. Scholes +1
We model energy transfer between two coupled four-level chromophores with arbitrarily spaced energy levels. Our analysis takes into account the crucial---yet often ignored---proces…
Symmetric Rotating Wave Approximation for the Generalized Single-Mode Spin-Boson System
Victor V. Albert, Gregory D. Scholes, Paul Brumer
The single-mode spin-boson model exhibits behavior not included in the rotating wave approximation (RWA) in the ultra and deep-strong coupling regimes, where counter-rotating contr…