Author

Pratik Nandy

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Preprint Jul 2026

Unitary $k$-designs without independent Hamiltonian quenches

Unitary $k$-designs provide a resource-efficient framework for emulating Haar randomness up to the $k$-th order. Quench-based protocols have recently been shown to generate such designs, but achieving this typically requires multiple Hamiltonian realizations, even when using temporal ensembles. Here, we show that no in...

Pratik Nandy · 2 citations