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10 papers · 2 filters
A Heuristic for Matrix Product State Simulation of Out-of-Equilibrium Dynamics of Two-Dimensional Quantum Spin Systems
Salvatore Mandrà, Brayden Ware, Nikita Astrakhantsev +4
Out-of-equilibrium dynamics of non-integrable Hamiltonian many-body quantum systems are characterized by highly entangled wave functions. Near-maximal entanglement arises in system…
Growth and collapse of subsystem complexity under random unitary circuits
Jeongwan Haah, Douglas Stanford
For chaotic quantum dynamics modeled by random unitary circuits, we study the complexity of reduced density matrices of subsystems as a function of evolution time where the initial…
Krylov Winding and Emergent Coherence in Operator Growth Dynamics
Rishik Perugu, Bryce Kobrin, Michael O. Flynn +1
The operator wavefunction provides a fine-grained description of quantum chaos and of the irreversible growth of simple operators into increasingly complex ones. Remarkably, at fin…
Future of Quantum Computing
Scott Aaronson, Andrew M. Childs, Edward Farhi +2
On Tuesday 26th November 2024, four discussants participated in a moderated virtual panel titled Future of Quantum Computing as one session of the 8th International Conference on Q…
Quasiparticle-induced decoherence of a driven superconducting qubit
Mykola Kishmar, Pavel D. Kurilovich, Andrey Klots +3
We develop a theory for two quasiparticle-induced decoherence mechanisms of a driven superconducting qubit. In the first mechanism, an existing quasiparticle (QP) tunnels across th…
Optimizing Sparse SYK
Matthew Ding, Robbie King, Bobak T. Kiani +1
Finding the ground state of strongly-interacting fermionic systems is often the prerequisite for fully understanding both quantum chemistry and condensed matter systems. The Sachde…