Antiferromagnetism and superconductivity are both fundamental and common states of
matter. In many strongly correlated systems, including the high-T c cuprates, the heavy …

Although microscopic laws of physics are invariant under the reversal of the arrow of time,
the transport of energy and information in most devices is an irreversible process. It is this …

We review the field of high temperature cuprate superconductors, with emphasis on the
nature of their electronic properties. After a general overview of experiment and theory, we …

We study the multicritical behavior arising from the competition of two distinct types of
ordering characterized by O (n) symmetries. For this purpose, we consider the …

The authors discuss concepts used by them and others for studying high temperature
superconductivity. These shed some light on basic questions. Suggestions are presented …

We propose a new type of Josephson junction formed by two superconductors close to the
superconductor–Mott-insulator transition, one of which is doped with holes and the other is …

We employ the nonperturbative functional renormalization group to study models with an O
(N 1)⊕ O (N 2) symmetry. Here different fixed points exist in three dimensions …

Commensurate antiferromagnetic ordering has been observed in the superconducting high-
T c cuprate YBa 2 Cu 3 O 6.5 (T c= 55 K) by polarized and unpolarized elastic neutron …

Recent experiments [Guo et al., Phys. Rev. Lett. 124 206602 (2020)] on thermodynamic
properties of the frustrated layered quantum magnet SrCu 2 (BO 3) 2—the Shastry …

We review the recent developments in the field of cuprate superconductors with special
focus on the recently observed charge order in the underdoped compounds. We introduce …