55 citations · 224 across the 14 of their papers we have counts for
6 papers · 1 filter
Ground state energy estimation and preparation by the truncated power method
Savero Lukianto Chandra, Daochen Wang, Carolyn Zhang
The Guided Local Hamiltonian Problem (GLHP) is the problem of ground state energy estimation and preparation given a guiding state having good overlap with the true ground state. T…
Local diagnostics for strong-to-weak spontaneous symmetry breaking and non-equilibrium phase transitions
Carolyn Zhang
We construct strongly -symmetric local Markov/Lindblad dynamics exhibiting transitions between strong-paramagnetic behavior and strong-to-weak spontaneous symmetry br…
Translation symmetry-enforced long-range entanglement in mixed states
Ryan Thorngren, Lei Gioia, Carolyn Zhang
We show by a counting argument that even though translation symmetry admits symmetric short-range entangled (SRE) eigenstates, there are not enough such SRE eigenstates to span the…
Antiunitary symmetry breaking and a hierarchy of purification transitions in Floquet non-unitary circuits
Carolyn Zhang, Etienne Granet
We consider how a maximally mixed state evolves under Floquet non-unitary circuits with an antiunitary symmetry that squares to identity, that serves as a generalized $\ma…
Note on quantum cellular automata and strong equivalence
Carolyn Zhang
In this note, we present some results on the classification of quantum cellular automata (QCA) in 1D under strong equivalence rather than stable equivalence. Under strong equivalen…
Volume-law to area-law entanglement transition in a non-unitary periodic Gaussian circuit
Etienne Granet, Carolyn Zhang, Henrik Dreyer
We consider Gaussian quantum circuits that alternate unitary gates and post-selected weak measurements, with spatial translation symmetry and time periodicity. We show analytically…