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Attend this theoretical physics seminar exploring the quantum Q-ball mechanism as an explanation for superconductivity in high-temperature cuprate materials. Delve into Professor Sergei I. Mukhin's comprehensive theoretical framework that connects the pseudogap state and high-Tc superconductivity through finite nontopological solitons of spin/charge density fluctuations called Q-balls. Examine how this mechanism, supported by micro X-ray diffraction data in HgBa2CuO4+y, provides a unified explanation for seemingly unrelated phenomena in cuprate superconductors including diamagnetism above Tc, hidden antiferromagnetic order, pseudogap formation, nematicity in electronic properties, anti-nodal and nodal regions in the Brillouin zone, T-linear electrical resistivity behavior, specific heat maximum near T*, and the percolative nature of the strange metal to bulk superconductivity transition. Learn about the mixed first/second order Q-ball phase transition occurring at temperature T* through the 'post-Fröhlich' mechanism of Cooper pairing via exchange with Q-balls, and discover theoretical calculations for electrical resistivity due to electron scattering on the Q-ball 'gas' that demonstrate the practical implications of this quantum field theory approach to understanding high-temperature superconductivity.
