4 papers
A Quantum Information Perspective on Many-Body Dispersive Forces
Christopher Willby, Martin Kiffner, Joseph Tindall +2
Despite its ubiquity, the quantum many-body properties of dispersion remain poorly understood. Here, we investigate the entanglement distribution in assemblies of quantum Drude osc…
Quantum many-body attractors
Berislav Buca, Archak Purkayastha, Giacomo Guarnieri +3
Complex dynamics when occurring autonomously, i.e. without external driving, is usually associated with everyday length scales and classical physics, e.g. living organisms. This dy…
Partitioned Quantum Subspace Expansion
Tom O'Leary, Lewis W. Anderson, Dieter Jaksch +1
We present an iterative generalisation of the quantum subspace expansion algorithm used with a Krylov basis. The iterative construction connects a sequence of subspaces via their l…
Solving lattice gauge theories using the quantum Krylov algorithm and qubitization
Lewis W. Anderson, Martin Kiffner, Tom O'Leary +2
Computing vacuum states of lattice gauge theories (LGTs) containing fermionic degrees of freedom can present significant challenges for classical computation using Monte-Carlo meth…