Sarah Shandera

activity

20242026

most citedEffective dynamics of qubit networks via phase-covariant quantum ensembles

1 citations · 1 across the 5 of their papers we have counts for

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quant-ph2026

Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an $N$ -Qubit Network

Tommy Chin, Sarah Shandera

We derive closed-form propagators for any $K$ -qubit subsystem of a closed $N$ -qubit network with a single conserved excitation. A single transition amplitude simultaneously control…

quant-ph2026

Operator dynamics in k-Markov random circuits

Unnati Akhouri, Pei-Jun Huang, Elliott Rose +1

We demonstrate that $k$ -Markov sequences of unitary gates provide low-cost handles to manipulate the rate and structure of information spreading compared to traditional random, 0-M…

Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an N-Qubit Network

Operator dynamics in k-Markov random circuits

Excitation Flow, Positivity, and Fisher Information for Open Subsystems of an $N$ -Qubit Network