The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …

Electronic nematicity has been commonly observed in juxtaposition with unconventional
superconductivity. Understanding the nature of the nematic state and its consequences for …

The electron–phonon interaction is a major factor influencing the competition between
collective instabilities in correlated-electron materials, but its role in driving high-temperature …

We review recent experimental and theoretical results on the interaction between single-
particle excitations and collective spin excitations in the superconducting state of high-Tc …

The attempt to understand copper oxide superconductors is complicated by the presence of
multiple strong interactions in these systems. Many believe that antiferromagnetism is …

Electron-doped cuprates consistently exhibit strong antiferromagnetic correlations, leading
to the prevalent belief that antiferromagnetic spin fluctuations mediate Cooper pairing in …

Unveiling the nature of the bosonic excitations that mediate the formation of Cooper pairs is
a key issue for understanding unconventional superconductivity. A fundamental step toward …

Angle-resolved photoemission spectroscopy on optimally doped B i 2 S r 2 C a 0.92 Y 0.08
C u 2 O 8+ δ uncovers a coupling of the electronic bands to a 40 meV mode in an extended …

Nonequilibrium pump-probe time-domain spectroscopies can become an important tool to
disentangle degrees of freedom whose coupling leads to broad structures in the frequency …