Atypical eigenstates in the form of quantum scars and fragmentation of Hilbert space due to
conservation laws provide obstructions to thermalization in the absence of disorder. In …

Quantum error correction was invented to allow for fault-tolerant quantum computation.
Systems with topological order turned out to give a natural physical realization of quantum …

Photons are the physical system of choice for performing experimental tests of the
foundations of quantum mechanics. Furthermore, photonic quantum technology is a main …

Quantum circuits utilizing measurement to evolve a quantum wave function offer a new and
rich playground to engineer unconventional entanglement dynamics. Here, we introduce a …

We study a vast family of continuum Rokhsar-Kivelson (RK) states, which have their ground
state encoded by a local quantum field theory. These describe certain quantum magnets …

We study gapless quantum spin chains with spin 1/2 and 1: the Fredkin and Motzkin models.
Their entangled groundstates are known exactly but not their excitation spectra. We first …

Many-body systems with multiple emergent time scales arise in various contexts, including
classical critical systems, correlated quantum materials, and ultracold atoms. We investigate …

Ground states of local Hamiltonians are known to obey the entanglement entropy area law.
While area-law violation of a mild kind (logarithmic) is commonly encountered, strong area …

We investigate ground-and excited-state properties of the deformed Fredkin spin chain
proposed by Salberger, Zhang, Klich, Korepin, and the authors. This model is a one …

Investigating translationally invariant qudit spin chains with a low local dimension, we ask
what is the best possible tradeoff between the scaling of the entanglement entropy of a large …