243 citations · 617 across the 21 of their papers we have counts for
21 papers
Theoretical investigation of non-Förster exciton transfer mechanisms in perylene diimide donor, phenylene bridge, and terrylene diimide acceptor systems
Lei Yang, Seogjoo J. Jang
The rates of exciton transfer within dyads of perylene diimide and terrylene diimide connected by oligophenylene bridge units have been shown to deviate significantly from those of…
Robust and fragile quantum effects in the transfer kinetics of delocalized excitons between B850 units of LH2 complexes
Seogjoo J. Jang
Aggregates of light harvesting 2 (LH2) complexes form the major exciton-relaying domain in the photosynthetic unit of purple bacteria. Application of a generalized master equation…
Is There Elliptic Distortion in the Light Harvesting Complex 2 of Purple Bacteria?
Seogjoo J. Jang, Robert J. Silly, Ralf Kunz +2
Single molecule spectroscopy (SMS) revealed unusually large gap between two major exciton peaks of the B850 unit of light harvesting complex 2 (LH2), which could be explained assum…
Charge Hopping Dynamics along a Disordered Chain in Quantum Environments: Comparative Study of Different Rate Kernels
Seogjoo J. Jang, Andres Montoya-Castillo
This work presents a computational study of charge hopping dynamics along a one dimensional chain with Gaussian site energy disorder and linearly coupled quantum bath. Time depende…
Effects of Donor-Acceptor Quantum Coherence and Non-Markovian Bath on the Distance Dependence of Resonance Energy Transfer
Seogjoo J. Jang
Accurate information on the distance dependence of resonance energy transfer (RET) is crucial for its utilization as a spectroscopic ruler \re{of} nanometer scale distances. In thi…
Computational Modeling of Exciton-bath Hamiltonians for LH2 and LH3 Complexes of Purple Photosynthetic Bacteria at Room Temperature
Daniel Montemayor, Eva Rivera, Seogjoo J. Jang
Light harvesting 2 (LH2) complex is a primary component of the photosynthetic unit of purple bacteria that is responsible for harvesting and relaying excitons. The electronic absor…
Multistep quantum master equation theory for response functions in four wave mixing electronic spectroscopy of multichromophoric macromolecules
Seogjoo J. Jang
This work provides an alternative derivation of third order response functions in four wave mixing spectroscopy of multichromophoric macromolecular systems considering only single…
General Chemical Reaction Network Theory for Olfactory Sensing Based on G-Protein-Coupled Receptors : Elucidation of Odorant Mixture Effects and Agonist-Synergist Threshold
Won Kyu Kim, Kiri Choi, Changbong Hyeon +1
This work presents a general chemical reaction network theory for olfactory sensing processes that employ G-protein-coupled receptors as olfactory receptors (ORs). The theory is ap…
Modified Fermi's golden rule rate expressions
Seogjoo J. Jang, Young Min Rhee
Fermi's golden rule (FGR) serves as the basis for many expressions of spectroscopic observables and quantum transition rates. The utility of FGR has been demonstrated through decad…
Partially polaron-transformed quantum master equation for exciton and charge transport dynamics
Seogjoo J. Jang
Polaron-transformed quantum master equation (PQME) offers a unified framework to describe the dynamics of quantum systems in both limits of weak and strong couplings to environment…
Fundamental trade-off between the speed of light and the Fano factor of photon current in three-level lambda systems
Davinder Singh, Seogjoo J. Jang, Changbong Hyeon
Electromagnetically induced slow-light medium is a promising system for quantum memory devices, but controlling its noise level remains a major challenge to overcome. This work con…
Excitons: Energetics and spatio-temporal dynamics
Seogjoo J. Jang, Irene Burghardt, Chao-Ping Hsu +1
The concept of an exciton as a quasiparticle that represents collective excited states was originally adapted from solid-state physics and has been successfully applied to molecula…
A simple generalization of the energy gap law for nonradiative processes
Seogjoo J. Jang
For more than 50 years, an elegant energy gap (EG) law developed by Englman and Jortner [Mol. Phys. {\bf 18}, 145 (1970)] has served as a key theory to understand and model nearly…
Delocalized excitons in natural light harvesting complexes
Seogjoo J. Jang, Benedetta Mennucci
Natural organisms such as photosynthetic bacteria, algae, and plants employ complex molecular machinery to convert solar energy into biochemical fuel. An important common feature s…
Non-uniqueness of quantum transition state theory and general dividing surfaces in the path integral space
Seogjoo Jang, Gregory A. Voth
Despite the fact that quantum mechanical principles do not allow the establishment of an exact quantum analogue of the classical transition state theory (TST), the development of a…
Can quantum transition state theory be defined as an exact t=0+ limit?
Seogjoo Jang, Gregory A. Voth
The definition of the classical transition state theory (TST) as a t= 0+ limit of the flux-side time correlation function relies on the assumption that simultaneous measurement of…
Generalized quantum Fokker-Planck equation for photoinduced nonequilibrium processes with positive definiteness condition
Seogjoo Jang
This work provides a detailed derivation of a generalized quantum Fokker-Planck equation (GQFPE) appropriate for photo-induced quantum dynamical processes. The path integral method…
Generalized master equation for modular exciton density transfer
Seogjoo Jang, Stephan Hoyer, Graham Fleming +1
A generalized master equation (GME) governing quantum evolution of modular exciton density (MED) is derived for large scale light harvesting systems composed of weakly interacting…
Real time quantum dynamics preaveraged over imaginary time path integral: A formal basis for both Centroid Molecular Dynamics and Ring Polymer Molecular Dynamics
Seogjoo Jang
An exact real time quantum dynamics preaveraged over imaginary time path integral is formulated for general condensed phase equilibrium ensemble. This formulation results in the we…
Coherent quantum dynamics in donor-bridge-acceptor systems: Beyond the hopping and super-exchange mechanisms
Seogjoo Jang, Timothy C. Berkelbach, David R. Reichman
The population transfer dynamics of model donor-bridge-acceptor systems is studied by comparing a recently developed polaron-transformed quantum master equation (PQME) with the wel…
Nonequilibrium generalization of Förster-Dexter theory for excitation energy transfer
Seogjoo Jang, YounJoon Jung, Robert J. Silbey
Förster-Dexter theory for excitation energy transfer is generalized for the account of short time nonequilibrium kinetics due to the nonstationary bath relaxation. The final rate e…