Prof. Subir Sachdev, one of the three physicists who shared the 2018 International Center for Theoretical Physics Dirac Medal for cross-disciplinary approaches to many-body systems, was at ICTP on March 28, 2019, for award ceremony, and sat down to discuss his career, his approach to research, and his future research plans.
Congratulations to Alex Atanasov, winner of Hertz, NSF GRFP, and NDSEG fellowships!
The National Science Foundation Graduate Research Fellowship Program (GRFP) recognizes and supports outstanding graduate students who are pursuing full-time research-based master's and doctoral degrees in science, technology, engineering, and mathematics (STEM) or in STEM education.
Moiré pattern (Courtesy: Alex Kruchkov).
Exactly a year ago, researchers at MIT reported on observing superconductivity in twisted bilayer graphene – a new experimental platform engineered on two misaligned graphene layers – at "magic angles" near 1.1°. The origin of these angles was a mystery, however. A team at Harvard University has now shown that they appear to be fundamentally connected to quantum Hall wave functions.
Figure 1: Schematic phase diagram of SU(2) gauge theory with adjoint Higgs fields for the hole-doped cuprates.*
© 2019 by the American Physical Society
Recent experiments have revealed remarkable new features of the optimal doping state of cuprate superconductors, namely, a peak in the specific heat for the hole-doped case and a state with Fermi pockets but only fluctuating antiferromagnetic order for the electron-doped case.