6 papers
Causally constrained quantum operator dynamics
Marcell D. Kovács, Marcell D. Kovács, Christopher J. Turner +2
This paper explores a route to non-ergodic quantum dynamics where algebraic restrictions in operator space arise from local constraints on the causal light cone. We model this thro…
Symmetric tensor scars with tunable entanglement from volume to area law
Bhaskar Mukherjee, Christopher J. Turner, Marcin Szyniszewski +1
Teleportation of quantum information over long distances requires robust entanglement on the macroscopic scale. The construction of highly energetic eigenstates with tunable long-r…
Operator space fragmentation in perturbed Floquet-Clifford circuits
Marcell D. Kovács, Christopher J. Turner, Lluis Masanes +1
Floquet quantum circuits are able to realise a wide range of non-equilibrium quantum states, exhibiting quantum chaos, topological order and localisation. In this work, we investig…
Measurement-induced Lévy flights of quantum information
Igor Poboiko, Marcin Szyniszewski, Christopher J. Turner +3
We explore a model of free fermions in one dimension, subject to frustrated (non-commuting) local measurements across adjacent sites, which resolves the fermions into non-orthogona…
Operator-space fragmentation and integrability in Pauli-Lindblad models
Dawid Paszko, Christopher J. Turner, Dominic C. Rose +1
The Lindblad equation for open quantum systems is central to our understanding of coherence and entanglement in the presence of Markovian dissipation. In closed quantum systems Hil…
Exact generalized Bethe eigenstates of the non-integrable alternating Heisenberg chain
Ronald Melendrez, Bhaskar Mukherjee, Marcin Szyniszewski +3
Exact solutions of quantum lattice models serve as useful guides for interpreting physical phenomena in condensed matter systems. Prominent examples of integrability appear in one…