Quantum computation of dynamical quantum phase transitions and entanglement tomography in a lattice gauge theory
Strongly coupled gauge theories far from equilibrium may exhibit unique features that could
illuminate the physics of the early universe and of hadron and ion colliders. Studying real …
illuminate the physics of the early universe and of hadron and ion colliders. Studying real …
Symmetry-resolved dynamical purification in synthetic quantum matter
When a quantum system initialized in a product state is subjected to either coherent or
incoherent dynamics, the entropy of any of its connected partitions generically increases as …
incoherent dynamics, the entropy of any of its connected partitions generically increases as …
Experimental single-setting quantum state tomography
Quantum computers solve ever more complex tasks using steadily growing system sizes.
Characterizing these quantum systems is vital, yet becoming increasingly challenging. The …
Characterizing these quantum systems is vital, yet becoming increasingly challenging. The …
Optimizing shadow tomography with generalized measurements
HC Nguyen, JL Bönsel, J Steinberg, O Gühne - Physical Review Letters, 2022 - APS
Advances in quantum technology require scalable techniques to efficiently extract
information from a quantum system. Traditional tomography is limited to a handful of qubits …
information from a quantum system. Traditional tomography is limited to a handful of qubits …
Lack of symmetry restoration after a quantum quench: an entanglement asymmetry study
We consider the quantum quench in the XX spin chain starting from a tilted Néel state which
explicitly breaks the $ U (1) $ symmetry of the post-quench Hamiltonian. Very surprisingly …
explicitly breaks the $ U (1) $ symmetry of the post-quench Hamiltonian. Very surprisingly …
Charge-resolved entanglement in the presence of topological defects
Topological excitations or defects such as solitons are ubiquitous throughout physics,
supporting numerous interesting phenomena like zero-energy modes with exotic statistics …
supporting numerous interesting phenomena like zero-energy modes with exotic statistics …
Entanglement resolution of free Dirac fermions on a torus
A bstract Whenever a system possesses a conserved charge, the density matrix splits into
eigenspaces associated to the each symmetry sector and we can access the entanglement …
eigenspaces associated to the each symmetry sector and we can access the entanglement …
On the boundary conformal field theory approach to symmetry-resolved entanglement
We study the symmetry resolution of the entanglement entropy of an interval in two-
dimensional conformal field theories (CFTs), by relating the bipartition to the geometry of an …
dimensional conformal field theories (CFTs), by relating the bipartition to the geometry of an …
Rényi entanglement asymmetry in ()-dimensional conformal field theories
M Chen, HH Chen - Physical Review D, 2024 - APS
In this paper, we consider the Rényi entanglement asymmetry of excited states in the (1+ 1)
dimensional free compact boson conformal field theory (CFT) at equilibrium. We obtain a …
dimensional free compact boson conformal field theory (CFT) at equilibrium. We obtain a …
Reflected entropy and computable cross-norm negativity: Free theories and symmetry resolution
We investigate a separability criterion based on the computable cross-norm (CCNR), and a
related quantity called the CCNR negativity. We introduce a reflected version of the CCNR …
related quantity called the CCNR negativity. We introduce a reflected version of the CCNR …