Nishimori's cat: stable long-range entanglement from finite-depth unitaries and weak measurements
In the field of monitored quantum circuits, it has remained an open question whether finite-
time protocols for preparing long-range entangled states lead to phases of matter that are …
time protocols for preparing long-range entangled states lead to phases of matter that are …
Majorana loop models for measurement-only quantum circuits
Projective measurements in random quantum circuits lead to a rich breadth of entanglement
phases and extend the realm of nonunitary quantum dynamics. Here, we explore the …
phases and extend the realm of nonunitary quantum dynamics. Here, we explore the …
Pauli topological subsystem codes from Abelian anyon theories
We construct Pauli topological subsystem codes characterized by arbitrary two-dimensional
Abelian anyon theories–this includes anyon theories with degenerate braiding relations and …
Abelian anyon theories–this includes anyon theories with degenerate braiding relations and …
Engineering Floquet codes by rewinding
Floquet codes are a novel class of quantum error-correcting codes with dynamically
generated logical qubits, which arise from a periodic schedule of non-commuting …
generated logical qubits, which arise from a periodic schedule of non-commuting …
Continuous symmetry breaking in adaptive quantum dynamics
Adaptive quantum circuits, in which unitary operations, measurements, and feedback are
used to steer quantum many-body systems, provide an exciting opportunity to generate …
used to steer quantum many-body systems, provide an exciting opportunity to generate …
Conformal field theories generated by Chern insulators under decoherence or measurement
We demonstrate that the fidelity between a pure state trivial insulator and the mixed state
density matrix of a Chern insulator generated from decoherence or measurement can be …
density matrix of a Chern insulator generated from decoherence or measurement can be …
Quantum entanglement phase transitions and computational complexity: Insights from Ising models
In this paper, we construct two-dimensional bipartite cluster states and perform single-qubit
measurements on the bulk qubits. We explore the entanglement scaling of the unmeasured …
measurements on the bulk qubits. We explore the entanglement scaling of the unmeasured …
Stable measurement-induced Floquet enriched topological order
The Floquet code utilizes a periodic sequence of two-qubit measurements to realize the
topological order. After each measurement round, the instantaneous stabilizer group can be …
topological order. After each measurement round, the instantaneous stabilizer group can be …
Hidden subsystem symmetry protected states in competing topological orders
S Feng - Physical Review B, 2024 - APS
We reveal the connection between two-dimensional subsystem symmetry-protected
topological (SSPT) states and two-dimensional topological orders via a self-dual frustrated …
topological (SSPT) states and two-dimensional topological orders via a self-dual frustrated …
Gifts from long-range interaction: Emergent gapless topological behaviors in quantum spin chain
S Yang, HQ Lin, XJ Yu - arxiv preprint arxiv:2406.01974, 2024 - arxiv.org
Topology in condensed matter physics is typically associated with a bulk energy gap.
However, recent research has shifted focus to topological phases without a bulk energy gap …
However, recent research has shifted focus to topological phases without a bulk energy gap …