1 citations · 1 across the 5 of their papers we have counts for
5 papers · 1 filter
Quantum codes in the Lee metric
Jinkang Guo, Yiqiu Han, Aranya Chakraborty +4
We introduce a quantum coding framework for discrete small-shift noise, in which errors on qudits are modeled as low-weight - and -type Pauli shifts, analogous to small phase…
Quantum Fragmentation
Yiqiu Han, Oliver Hart, Alexey Khudorozhkov +1
We introduce a systematic protocol for constructing quantum Hilbert-space-fragmented Hamiltonians, whose Krylov-sector structure, unlike in classically fragmented models, can be fu…
Entanglement Transitions in Noisy Quantum Circuits on Trees
Vikram Ravindranath, Yiqiu Han, Xiao Chen
Decoherence is ubiquitous, and poses a significant impediment to the observation of quantum phenomena, such as the measurement-induced entanglement phase transition (MIPT). In this…
Exponentially slow thermalization in 1D fragmented dynamics
Cheng Wang, Shankar Balasubramanian, Yiqiu Han +3
We investigate the thermalization dynamics of 1D systems with local constraints coupled to an infinite temperature bath at one boundary. The coupling to the bath eventually erases…
Exponentially slow thermalization and the robustness of Hilbert space fragmentation
Yiqiu Han, Xiao Chen, Ethan Lake
The phenomenon of Hilbert space fragmentation, whereby dynamical constraints fragment Hilbert space into many disconnected sectors, provides a simple mechanism by which thermalizat…