4 papers
Spectra of noisy parameterized quantum circuits: Single-Ring universality
Kristian Wold, Pedro Ribeiro, Sergey Denisov
Random unitaries are an important resource for quantum information processing. While their universal properties have been thoroughly analyzed, it is not known what happens to these…
Experimental Detection of Dissipative Quantum Chaos
Kristian Wold, Zitian Zhu, Feitong Jin +13
More than four decades of research on chaos in isolated quantum systems have led to the identification of universal signatures -- such as level repulsion and eigenstate thermalizat…
Quantum Liouvillian Tomography
Diogo Aguiar, Kristian Wold, Sergey Denisov +1
Characterization of near-term quantum computing platforms requires the ability to capture and quantify dissipative effects. This is an inherently challenging task, as these effects…
Dissipation-Induced Threshold on Integrability Footprints
Rodrigo M. C. Pereira, Nadir Samos Sáenz de Buruaga, Kristian Wold +3
The presence of a dissipative environment disrupts the unitary spectrum of dynamical quantum maps. Nevertheless, key features of the underlying unitary dynamics -- such as their in…