13 citations · 32 across the 4 of their papers we have counts for
5 papers
Parahydrogen-induced polarization relayed via proton exchange
Kolja Them, Frowin Ellermann, Andrey N. Pravdivtsev +5
The sensitivity of NMR and MRI can be boosted via hyperpolarization of nuclear spins. However, current methods are costly, polarization is relatively low, or applicability is limit…
From Molecular Quantum Electrodynamics at Finite Temperatures to Nuclear Magnetic Resonance
Kolja Them
The algebraic reformulation of molecular Quantum Electrodynamics (mQED) at finite temperatures is applied to Nuclear Magnetic Resonance (NMR) in order to provide a foundation for t…
Non-equilibrium finite temperature dynamics of magnetic quantum systems: Applications to spin-polarized scanning tunneling microscopy
Kolja Them, T. Stapelfeldt, E. Y. Vedmedenko +1
We calculate the real time non-equilibrium dynamics of quantum spin systems at finite temperatures. The mathematical framework originates from the -approach to quantum statist…
Towards experimental tests and applications of Lieb-Robinson bounds
Kolja Them
Spin-polarized scanning tunneling microscopy is identified as a suitable experimental technique to investigate the quantitative quality of Lieb-Robinson bounds on the signal veloci…
States of Low Energy in Homogeneous and Inhomogeneous, Expanding Spacetimes
Kolja Them, Marcos Brum
We construct states on the algebra of the Klein-Gordon field that minimize the energy density in homogeneous and in inhomogeneous spacetimes, both with compact Cauchy hypersurfaces…