High harmonic spectroscopy of quantum phases in a high-Tc superconductor
J Alcalé, U Bhattacharya, M Ciappina… - 2023 Conference on …, 2023 - ieeexplore.ieee.org
2023 Conference on Lasers and Electro-Optics Europe & European …, 2023•ieeexplore.ieee.org
… Through high harmonic generation these intricate dynamics are encoded in the spectrum,
where the formation of composite bosons from Cooper pairing between fermionic spin-
particles becomes observable through changes in the amplitude and distribution of the
harmonics. This enables an all-optical probe technique, which we employ to measure
transitions between quantum phases of the unconventional high-Tc superconductor
YBa2Cu3O7−d (YBCO) [3]. The measurement is performed with a mid-infrared OPCPA …
where the formation of composite bosons from Cooper pairing between fermionic spin-
particles becomes observable through changes in the amplitude and distribution of the
harmonics. This enables an all-optical probe technique, which we employ to measure
transitions between quantum phases of the unconventional high-Tc superconductor
YBa2Cu3O7−d (YBCO) [3]. The measurement is performed with a mid-infrared OPCPA …
Ultrafast carrier dynamics are uniquely sensitive to the correlated interactions within quantum materials as well as their transition to different phases, like the emergence of superconductivity (SC) [1], [2].
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