5 papers · 1 filter
Continuous-angle logical rotations in the Steane code
Eric Huang, Daiwei Zhu, Matteo Ippoliti +2
We experimentally demonstrate continuous-angle logical rotations in the Steane code on the IonQ Forte trapped-ion processor. A round of the protocol applies a trans…
Provable random-matrix spectral ramp in a static, geometrically local Hamiltonian
Matteo Ippoliti
Quantum chaos is commonly associated with the emergence of random-matrix statistics in the spectra of quantum systems. A useful diagnostic is provided by the spectral form factor (…
Emergent unitary designs for encoded qubits from coherent errors and syndrome measurements
Zihan Cheng, Eric Huang, Vedika Khemani +2
Unitary -designs are distributions of unitary gates that match the Haar distribution up to its -th statistical moment. They are a crucial resource for randomized quantum prot…
Learnability transitions in monitored quantum dynamics via eavesdropper's classical shadows
Matteo Ippoliti, Vedika Khemani
Monitored quantum dynamics -- unitary evolution interspersed with measurements -- has recently emerged as a rich domain for phase structure in quantum many-body systems away from e…
Classical shadows based on locally-entangled measurements
Matteo Ippoliti
We study classical shadows protocols based on randomized measurements in -qubit entangled bases, generalizing the random Pauli measurement protocol (). We show that entan…