Decoherence inevitably happens when a quantum state is exposed to its environment,
which can affect quantum critical points (QCPs) in a nontrivial way. As was pointed out in the …

Prior work [arXiv: 2106.16248] shows that the Standard Model (SM) naturally arises near a
gapless quantum critical region between Georgi-Glashow (GG) $ su (5) $ and Pati-Salam …

We study a class of symmetry protected topological (SPT) phases under various types of
decoherence, which can drive a pure SPT state into a mixed state. We demonstrate that the …

By constructing an exactly solvable spin model, we investigate the critical behaviors of
transverse-field Ising chains interpolated with cluster interactions, which exhibit various …

We introduce topological invariants for gapless systems and study the associated boundary
phenomena. More generally, the symmetry properties of the low-energy conformal field …

It has been proposed that an extended version of the Hubbard model which potentially hosts
rich correlated physics may be well simulated by the transition metal dichalcogenide (TMD) …

Abstract One dimensional $(1d) $ interacting systems with local Hamiltonians can be
studied with various well-developed analytical methods. Recently novel $1 d $ physics was …

We study quantum phase transitions in Bose-Fermi mixtures driven by interspecies
interaction in the quantum Hall regime. In the absence of such an interaction, the bosons …

The deconfined quantum critical point (DQCP) between the Néel and valence bond solid
order was originally proposed in quantum spin systems with a local Hamiltonian. In the last …

We construct unitary, stable, and interacting conformal boundary conditions for a free
massless scalar in four dimensions by coupling it to edge modes living on a boundary. The …