%0 Journal Article %1 PhysRevResearch.3.L042034 %A Kornich, Viktoriia %A Schlawin, Frank %A Sentef, Michael A. %A Trauzettel, Björn %D 2021 %I American Physical Society %J Phys. Rev. Res. %K a %N 4 %P L042034 %R 10.1103/PhysRevResearch.3.L042034 %T Direct detection of odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy %U https://link.aps.org/doi/10.1103/PhysRevResearch.3.L042034 %V 3 %X We propose a measurement scheme to directly detect odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy. The scheme includes two consecutive nonoverlapping probe pulses applied to a superconducting sample. The photoemitted electrons are collected in a momentum-resolved fashion. Correlations between signals with opposite momenta are analyzed. Remarkably, these correlations are directly proportional to the absolute square of the time-ordered anomalous Green's function of the superconductor. This setup allows for the direct detection of the “hidden order parameter” of odd-frequency pairing. We illustrate this general scheme by analyzing the signal for the prototypical case of a two-band superconductor.

@article{PhysRevResearch.3.L042034, abstract = {We propose a measurement scheme to directly detect odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy. The scheme includes two consecutive nonoverlapping probe pulses applied to a superconducting sample. The photoemitted electrons are collected in a momentum-resolved fashion. Correlations between signals with opposite momenta are analyzed. Remarkably, these correlations are directly proportional to the absolute square of the time-ordered anomalous Green's function of the superconductor. This setup allows for the direct detection of the “hidden order parameter” of odd-frequency pairing. We illustrate this general scheme by analyzing the signal for the prototypical case of a two-band superconductor.}, added-at = {2023-10-06T15:26:02.000+0200}, author = {Kornich, Viktoriia and Schlawin, Frank and Sentef, Michael A. and Trauzettel, Björn}, biburl = {https://www.bibsonomy.org/bibtex/246a3b2fa1742e60b190aec3a041f6495/ctqmat}, day = 03, description = {Phys. Rev. Research 3, L042034 (2021) - Direct detection of odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy}, doi = {10.1103/PhysRevResearch.3.L042034}, interhash = {421111971b55b62a0a614098e7a14a9f}, intrahash = {46a3b2fa1742e60b190aec3a041f6495}, journal = {Phys. Rev. Res.}, keywords = {a}, month = {12}, number = 4, numpages = {9}, pages = {L042034}, publisher = {American Physical Society}, timestamp = {2023-10-06T15:26:02.000+0200}, title = {Direct detection of odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy}, url = {https://link.aps.org/doi/10.1103/PhysRevResearch.3.L042034}, volume = 3, year = 2021 }