Absence of barren plateaus in finite local-depth circuits with long-range entanglement
Ground state preparation is classically intractable for general Hamiltonians. On quantum
devices, shallow parametrized circuits can be effectively trained to obtain short-range …
devices, shallow parametrized circuits can be effectively trained to obtain short-range …
Entanglement properties of gauge theories from higher-form symmetries
We explore the relationship between higher-form symmetries and entanglement properties
in lattice gauge theories with discrete gauge groups, which can exhibit both topologically …
in lattice gauge theories with discrete gauge groups, which can exhibit both topologically …
Topological quantum phase transitions in 2D isometric tensor networks
Isometric tensor networks (isoTNS) form a subclass of tensor network states that have an
additional isometric condition, which implies that they can be efficiently prepared with a …
additional isometric condition, which implies that they can be efficiently prepared with a …
Critical behavior of the Fredenhagen-Marcu order parameter at topological phase transitions
A nonlocal string order parameter detecting topological phase transitions has been
proposed by Fredenhagen and Marcu (FM). In this work, we find that the FM string order …
proposed by Fredenhagen and Marcu (FM). In this work, we find that the FM string order …
Simulating two-dimensional topological quantum phase transitions on a digital quantum computer
Efficient preparation of many-body ground states is key to harnessing the power of quantum
computers in studying quantum many-body systems. In this work, we propose a simple …
computers in studying quantum many-body systems. In this work, we propose a simple …
Solvable models for 2+ 1D quantum critical points: Loop soups of 1+ 1D conformal field theories
We construct a class of solvable models for 2+ 1D quantum critical points by attaching 1+ 1D
conformal field theories (CFTs) to fluctuating domain walls forming a" loop soup" …
conformal field theories (CFTs) to fluctuating domain walls forming a" loop soup" …
Bridging Rokhsar-Kivelson type and generic quantum phase transitions via thermofield double states
The formalism of the Rokhsar-Kivelson (RK) model has been frequently used to study
topological phase transitions in 2D in terms of the deformed wave functions, which are RK …
topological phase transitions in 2D in terms of the deformed wave functions, which are RK …
Quantum Phase Transitions between Symmetry-Enriched Fracton Phases
Phases with topological order exhibit further complexity in the presence of global
symmetries: States with the same topological order are distinguished by how their anyonic …
symmetries: States with the same topological order are distinguished by how their anyonic …
Boundary anomaly detection in two-dimensional subsystem symmetry-protected topological phases
K Ding, HR Zhang, BT Liu, S Yang - arxiv preprint arxiv:2412.07563, 2024 - arxiv.org
We develop a method to detect quantum anomalies in systems with subsystem symmetry,
building on the concept of anomaly indicators. This approach allows us to distinguish …
building on the concept of anomaly indicators. This approach allows us to distinguish …
Finite Entanglement Scaling of Disorder Parameter at Quantum Criticality
The disorder parameter, which is the expectation value of the symmetry transformation
acting on a subsystem, can be used to characterize symmetric phases as an analogy to …
acting on a subsystem, can be used to characterize symmetric phases as an analogy to …