The Heisenberg picture can make quantum many-body simulation efficient when evolved observables admit compact operator representation within low-dimensional structures. Conventional Pauli-string propagation and truncation techniques exploit this structure, but in coherent Hamiltonian dynamics their error control is oft...
Federico Tomás B. Pérez, Gabriela Wójtowicz, M. Plenio· 0 citations
The description of open quantum system dynamics beyond the perturbative treatment (usually associated with Markovian master equations) is a computationally challenging task due to the unfavorable exponential scaling of memory kernels. Developed over recent decades in the context of quantum information and condensed mat...
Thibaut Lacroix, Adam Burgess, Nicola Lorenzoni et al.· 6 citations
Plaquette is presented, a theoretical framework and software suite that computes the logical performance of fault-tolerant architectures directly from the physics of such imperfections and provides a direct path from the open-system physics of a device to the logical performance of the FTQC built on it.
Raul Conchello Vendrell, Carlos D'iaz L'opez, Ish Dhand et al.· 0 citations
Quantum metrology faces major challenges in noisy environments, where decoherence rapidly degrades useful quantum resources. We investigate the dynamics of the precision limits given by the quantum Fisher information (QFI) for phase estimation under spatially correlated dephasing. We characterize the dynamics of the QF...
T. B. Lantaño, Gabriela Wójtowicz, S. Huelga et al.· 0 citations
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