10 citations · 24 across the 14 of their papers we have counts for
7 papers · 1 filter
Non-adiabatic Optimisation via Localisation-Delocalisation Transitions
Ryan Smith, Sabrina Yue Wang, Filippo Maria Gambetta +1
The promise of efficiently solving classical optimisation problems on quantum computers is tantalizing. As many such problems can be mapped to approximating the ground state of spi…
Maximum-Entropy Extension of Quantum Correlation Functions from Short Real-Time Dynamics
Filippo Maria Gambetta, Sabrina Yue Wang, Raul A. Santos
Correlation functions are central to understanding the behavior of quantum systems, with their spectra giving direct access to quasiparticle and collective excitations. However, th…
Time evolution of impurity models and their universality for quantum computation
N. C. Mai Pham, Raul A. Santos
Impurity Hamiltonians are systems of fermionic modes where of them interact among themselves via quartic (or higher order) fermion terms, while coupling quadratically wi…
On the stability to noise of fermion-to-qubit mappings
Guillermo González-García, Filippo Maria Gambetta, Raul A. Santos
Quantum simulations before fault tolerance suffer from the intrinsic noise present in quantum computers. In this regime, extracting meaningful results greatly benefits from stabili…
Onset of Ergodicity Across Scales on a Digital Quantum Processor
Faisal Alam, Marcos Crichigno, Elizabeth Crosson +7
Understanding how isolated quantum many-body systems thermalize remains a central question in modern physics. We study the onset of ergodicity in a two-dimensional disordered Heise…
Efficient classical simulation of time dynamics in Fermi-Hubbard models with imaginary interactions
Raul A. Santos
Using a map between the Lindbladian evolution of dephasing in free fermions and the time evolution of imaginary-interaction Fermi-Hubbard models in bipartite lattices, we present a…
Quantum algorithm for dephasing of coupled systems: decoupling and IQP duality
Sabrina Yue Wang, Raul A. Santos
Noise and decoherence are ubiquitous in the dynamics of quantum systems coupled to an external environment. In the regime where environmental correlations decay rapidly, the evolut…