107 citations · 488 across the 12 of their papers we have counts for
12 papers
Quantum dynamics of two interacting PT-symmetric non-Hermitian qubits: enhancement of quantum annealing
Yana Komissarova, Mikhail V. Fistul, Ilya M. Eremin
Quantum information platforms enable analog quantum simulations, such as quantum annealing, offering a promising route to solving complex combinatorial optimization problems. Here,…
Superluminal Propagation of Composite Collective Modes in Superconductor-Ferromagnet Heterostructures
Pascal Derendorf, Anatoly F. Volkov, Ilya M. Eremin
Superconductor/ferromagnet/superconductor Josephson junctions are paradigmatic systems for studying the delicate interplay of superconductivity and magnetism via proximity effects…
Quantum vortex core and missing pseudogap in the multi-band BCS-BEC-crossover superconductor FeSe
T. Hanaguri, S. Kasahara, J. Böker +3
FeSe is argued as a superconductor in the Bardeen-Cooper-Schrieffer Bose-Einstein-condensation crossover regime where the superconducting-gap size and the superconducting transitio…
Pressure effects on the electronic properties of the undoped superconductor ThFeAsN
N. Barbero, S. Holenstein, T. Shang +9
The recently synthesized ThFeAsN iron-pnictide superconductor exhibits a of 30 K, the highest of the 1111-type series in absence of chemical doping. To understand how pressur…
Detecting sign-changing superconducting gap in LiFeAs using quasiparticle interference
D. Altenfeld, P. J. Hirschfeld, I. I. Mazin +1
Using a realistic ten-orbital tight-binding model Hamiltonian fitted to the angle-resolved photoemission (ARPES) data on LiFeAs, we analyze the temperature, frequency, and momentum…
Spin reorientation driven by the interplay between spin-orbit coupling and Hund's rule coupling in iron pnictides
M. H. Christensen, Jian Kang, B. M. Andersen +2
In most magnetically-ordered iron pnictides, the magnetic moments lie in the FeAs planes, parallel to the modulation direction of the spin stripes. However, recent experiments in h…
Robust determination of superconducting gap sign changes via quasiparticle interference
P. J. Hirschfeld, D. Altenfeld, I. Eremin +1
Phase-sensitive measurements of the superconducting gap in Fe-based superconductors have proven more difficult than originally anticipated. While quasiparticle interference (QPI) m…
Pairing symmetry of the one-band Hubbard model in the paramagnetic weak-coupling limit: a numerical RPA study
A. T. Romer, A. Kreisel, I. Eremin +4
We study the spin-fluctuation-mediated superconducting pairing gap in a weak-coupling approach to the Hubbard model for a two dimensional square lattice in the paramagnetic state.…
Superconducting phase diagram of itinerant antiferromagnets
A. T. Roemer, I. Eremin, P. J. Hirschfeld +1
We study the phase diagram of the Hubbard model in the weak-coupling limit for coexisting spin-density-wave order and spin-fluctuation-mediated superconductivity. Both longitudinal…
Ultrafast modulation of the chemical potential in BaFeAs by coherent phonons
L. X. Yang, G. Rohde, T. Rohwer +18
Time- and angle-resolved extreme ultraviolet photoemission spectroscopy is used to study the electronic structure dynamics in BaFeAs around the high-symmetry points and…
Interplay of magnetic and structural transitions in Fe-based pnictide superconductors
A. Cano, M. Civelli, I. Eremin +1
The interplay between the structural and magnetic phase transitions occurring in the Fe-based pnictide superconductors is studied within a Ginzburg-Landau approach. We show that th…
Incommensurate itinerant antiferromagnetic excitations and spin resonance in the FeTeSe superconductor
D. N. Argyriou, A. Hiess, A. Akbari +8
We report on inelastic neutron scattering measurements that find incommensurate itinerant like magnetic excitations in the normal state of superconducting FeTeSe (\…