33 citations · 64 across the 7 of their papers we have counts for
7 papers
The role of spin-orbit coupling and state-crossing topography in the non-radiative decay of Ir(III) complexes
Ivan Soriano-Diaz, Ilya D. Dergachev, Sergey A. Varganov +2
A pillar of our current understanding of the photoluminescence of Ir(III) complexes is the assumption that the population of triplet metal-centered states determines an efficient n…
Effects of Coupling Between Chiral Vibrations and Spins in Molecular Magnets
Aman Ullah, Sergey A. Varganov, Yafis Barlas
In single molecular magnets, chiral vibrations carrying vibrational angular momentum () emerge due to the splitting of a doubly degenerate vibrational mode. H…
Excited-State Dynamics and Optically Detected Magnetic Resonance of Solid-State Spin Defects from First Principles
Kejun Li, Vsevolod D. Dergachev, Ilya D. Dergachev +3
Optically detected magnetic resonance (ODMR) is an efficient and reliable method that enables initialization and readout of spin states through spin-photon interface. In general, h…
Anthropic constraint on transient variations of fundamental constants
Vsevolod D. Dergachev, Hoang Bao Tran Tan, Sergey A. Varganov +1
The anthropic principle implies that life can emerge and be sustained only in a narrow range of values of fundamental constants. Here we show that anthropic arguments can set power…
Spin coherence and optical properties of alkali-metal atoms in solid parahydrogen
Sunil Upadhyay, Ugne Dargyte, Vsevolod D. Dergachev +5
We present a joint experimental and theoretical study of spin coherence properties of 39K, 85Rb, 87Rb, and 133Cs atoms trapped in a solid parahydrogen matrix. We use optical pumpin…
Enhanced spin coherence of rubidium atoms in solid parahydrogen
Sunil Upadhyay, Ugne Dargyte, Robert P. Prater +5
We measure the transverse relaxation of the spin state of an ensemble of ground-state rubidium atoms trapped in solid parahydrogen at cryogenic temperatures. We find the spin depha…
Accurate potential energy, dipole moment curves, and lifetimes of vibrational states of heteronuclear alkali dimers
Dmitry A. Fedorov, Andrei Derevianko, Sergey A. Varganov
We calculate the potential energy curves, the permanent dipole moment curves, and the lifetimes of the ground and excited vibrational states of the heteronuclear alkali dimers XY (…