We seek to understand how biological systems exploit quantum mechanical phenomena. For example, photosynthetic antenna complexes use coherent energy transfer to move energy with extreme efficiency despite a dynamic, disordered environment. We use femtosecond laser systems to probe energy transfer on ultrafast timescales in an attempt to unravel the design principles that nature uses.
L. Wang, G.B. Griffin, A. Zhang, F. Zhai, N.E. Williams, R.F. Jordan, and G.S. Engel, "Controlling quantum-beating signals in 2D electronic spectra by packing synthetic heterodimers on single-walled carbon nanotubes" Nature Chemistry 9, 219–225 2017.
P.D. Dahlberg, G.J. Norris, C. Wang, S. Viswanathan, V.P. Singh, and G.S. Engel , "Communication: Coherences observed in vivo in photosynthetic bacteria using two-dimensional electronic spectroscopy" J. Chem. Phys. 143, 101101 2015.
V. P. Singh, M. Westberg, C. Wang, P. D. Dahlberg, T. Gellen, A. T. Gardiner, R. J. Cogdell, and G. S. Engel, "Towards quantification of vibronic coupling in photosynthetic antenna complexes" J. Chem. Phys. 142, 212446 2015.
M. Mohseni, Y. Omar, G.S. Engel, and M.B. Plenio, "Quantum Effects in Biology" Cambridge University Press, 2014.
A.F. Fidler, V.P. Singh, P.D. Long, P.D. Dahlberg, and G.S. Engel, "Dynamic localization of electronic excitation in photosynthetic complexes revealed with chiral two-dimensional spectroscopy" Nat. Comm. 5, 3286 2014.