139 citations · 392 across the 11 of their papers we have counts for
11 papers
Fano interference of the Higgs mode in cuprate high-Tc superconductors
Hao Chu, Sergey Kovalev, Zi Xiao Wang +31
Despite decades of search for the pairing boson in cuprate high-Tc superconductors, its identity still remains debated to date. For this reason, spectroscopic signatures of electro…
Phase signatures in third-harmonic response of Higgs and coexisting modes in superconductors
Lukas Schwarz, Rafael Haenel, Dirk Manske
Third-harmonic generation (THG) experiments on superconductors can be used to investigate collective excitations like the amplitude mode of the order parameter known as Higgs mode.…
Time-resolved optical conductivity and Higgs oscillations in two-band dirty superconductors
Rafael Haenel, Paul Froese, Dirk Manske +1
Recent studies have emphasized the importance of impurity scattering for the optical Higgs response of superconductors. In the dirty limit, an additional paramagnetic coupling of l…
Momentum-resolved analysis of condensate dynamic and Higgs oscillations in quenched superconductors with tr-ARPES
Lukas Schwarz, Benedikt Fauseweh, Dirk Manske
Higgs oscillations in nonequilibrium superconductors provide an unique tool to obtain information about the underlying order parameter. Several properties like the absolute value,…
Current-assisted Raman activation of the Higgs mode in superconductors
Matteo Puviani, Lukas Schwarz, Xiao-Xiao Zhang +2
The Higgs mode in superconductors is a scalar mode without electric or magnetic dipole moment. Thus, it is commonly believed that its excitation is restricted to a nonlinear two-ph…
Theory of driven Higgs oscillations and third-harmonic generation in unconventional superconductors
Lukas Schwarz, Dirk Manske
Higgs spectroscopy is a new field in which Higgs modes in nonequilibrium superconductors are analyzed to gain information about the ground state. One experimental setup in which th…
Phase-resolved Higgs response in superconducting cuprates
Hao Chu, Min-Jae Kim, Kota Katsumi +26
In high energy physics, the Higgs field couples to gauge bosons and fermions and gives mass to their elementary excitations. Experimentally, such couplings can be inferred from the…
Classification and characterization of nonequilibrium Higgs modes in unconventional superconductors
L. Schwarz, B. Fauseweh, N. Tsuji +8
Recent findings of new Higgs modes in unconventional superconductors require a classification and characterization of the modes allowed by nontrivial gap symmetry. Here we develop…
Computing eigenfunctions and eigenvalues of boundary value problems with the orthogonal spectral renormalization method
Holger Cartarius, Ziad H. Musslimani, Lukas Schwarz +1
The spectral renormalization method was introduced in 2005 as an effective way to compute ground states of nonlinear Schrödinger and Gross-Pitaevskii type equations. In this paper,…
Vortices in Bose-Einstein condensates with -symmetric gain and loss
Lukas Schwarz, Holger Cartarius, Ziad H. Musslimani +2
We investigate vortex excitations in dilute Bose-Einstein condensates in the presence of complex -symmetric potentials. These complex potentials are used to describe…
Fano resonances in scattering: an alternative perspective
Lukas Schwarz, Holger Cartarius, Günter Wunner +2
In a previous paper it has been shown that the interference of the first and second order pole of the Green's function at an exceptional point, as well as the interference of the f…