Dynamics-to-statistics
and quantum-to-classical transition in nonequilibrium many-body
systems; chaos, decoherence, foundations of quantum statistical
physics;
Spin
dynamics, spin-spin relaxation in nuclear magnetic resonance
(NMR);
High-temperature
superconductivity, spin- and charge-density waves in strongly
correlated electronic systems
Master
projects are available! If
interested, please inquire at boris.fine(at)uni-leipzig.de
Members
of the group:
Anastasia
Aristova - Ph.D. student
Louisa
Dreyer - Bachelor student
Jan
Finke - Bachelor student
Philipp
Zikeli - Bachelor student
Maximillian
Zoschke - Bachelor student
Selected
publications and preprints:
I.
Ermakov, O. Lychkovskiy, B. V. Fine, Periodic
classical trajectories and quantum scars in many-spin systems,
preprint
arXiv:2409.00258(2024)
A.
E. Tarkhov, A. V. Rozhkov and B. V. Fine, Transient
ordering in the Gross-Pitaevskii lattice after an energy quench
within a nonordered phase,
Phys.
Rev. B Letters 106,
L201110
(2022)
A.
Zong, A. Kogar, Y.-Q. Bie, T. Rohwer, Ch. Lee, E. Baldini, E.
Ergeçen, M. B. Yilmaz, B. Freelon, E. J. Sie, H. Zhou, J.
Straquadine, P. Walmsley, P. E. Dolgirev, A. V. Rozhkov, I. R.
Fisher, P. Jarillo-Herrero, B. V. Fine, N. Gedik, Evidence
of topological defects in a photo-induced phase transition,
Nature
Physics 15,
27 (2019)
G.
A. Starkov, B. V. Fine , Hybrid
quantum-classical method for simulating high-temperature dynamics of
nuclear spins in solids,
Physical
Review B 98,
214421 (2018)
A.A.
E. Tarkhov, B. V. Fine, Estimating
ergodization time of a chaotic many-particle system from a time
reversal of equilibrium noise,
New
J. Phys. 20 123021 (2018)
W.
Hahn, B.V. Fine, Stability
of quantum statistical ensembles with respect to local measurements,
Phys.
Rev. E 94,
062106 (2016)
B.
V. Fine, Comment
on “Broken translational and rotational symmetry via charge stripe
order in underdoped YBa2Cu3O6+y”,
Science
351, 235-a
(2016)
T.
A. Elsayed and B. V. Fine, Sensitivity
to small perturbations in systems of large quantum spins,
Phys.
Scr. 2015 014011, (2015)
T.
A. Elsayed and B. V. Fine, Effectiveness
of classical spin simulations for describing NMR relaxation of
quantum spins,
Phys.
Rev. B 91,
094424 (2015)
T.
A. Elsayed, B. Hess and B. V. Fine, Signatures
of chaos in time series generated by many-spin systems at high
temperatures,
Phys.
Rev. E 90,
022910 (2014)
B.
V. Fine, T. A. Elsayed, C. M. Kropf, and A. S. de Wijn, Absence
of exponential sensitivity to small perturbations in nonintegrable
systems of spins 1/2,
Phys.
Rev. E 89,
012923 (2014)
A.
S. de Wijn, B. Hess, and B. V. Fine, Lyapunov
instabilities in lattices of interacting classical spins at infinite
temperature,
J.
Phys. A: Math. Theor. 46
254012 (2013)
T.
A. Elsayed, B. V. Fine, Regression
relation for pure quantum states and its implications for efficient
computing,
Phys.
Rev. Lett. 110,
070404 (2013)
C.
M. Kropf and B. V. Fine, Nonsecular
resonances for the coupling between nuclear spins in solids,Phys.
Rev. B 86,
094401 (2012)
A.
S. de Wijn, B. Hess and B. V. Fine, Largest
Lyapunov exponents for the lattices of interacting classical spins, Phys.
Rev. Lett. 109,
034101 (2012)
K.
Ji and B. V. Fine, Non-thermal
statistics in isolated quantum spin clusters after a series of
perturbations,
Phys.
Rev. Lett. 107,
050401 (2011)
B.
V. Fine, Typical
state of an isolated quantum system with fixed energy and
unrestricted participation of eigenstates,
Phys.
Rev. E 80,
051130 (2009)
B.
V. Fine and T. Egami, Phase
separation in the vicinity of quantum-critical doping concentration:
Implications for high-temperature superconductors,
Phys.
Rev. B 77,
014519 (2008)
B.
V. Fine, Magnetic
vortices instead of stripes: another interpretation of magnetic
neutron scattering in lanthanum cuprates,
Phys.
Rev. B 75,
060504 (2007)
B.
V. Fine, Hypothesis
of two-dimensional stripe arrangement and its implications for the
superconductivity in high-Tc cuprates,
Phys.
Rev. B 70,
224508 (2004)
For
a popular description of some of my research, see news
highlights:
