124 citations · 1.6k across the 61 of their papers we have counts for
4 papers · 1 filter
Genuine quantum scars in many-body spin systems
Andrea Pizzi, Long-Hei Kwan, Bertrand Evrard +2
Chaos makes isolated systems of many interacting particles quickly thermalize and forget about their past. Here, we show that quantum mechanics hinders chaos in many-body systems:…
Classical approaches to prethermal discrete time crystals in one, two, and three dimensions
Andrea Pizzi, Andreas Nunnenkamp, Johannes Knolle
We provide a comprehensive account of prethermal discrete time crystals within classical Hamiltonian dynamics, complementing and extending our recent work [Phys. Rev. Lett. 127, 14…
Classical Prethermal Phases of Matter
Andrea Pizzi, Andreas Nunnenkamp, Johannes Knolle
Systems subject to a high-frequency drive can spend an exponentially long time in a prethermal regime, in which novel phases of matter with no equilibrium counterpart can be realiz…
Variational quantum algorithm with information sharing
Chris N. Self, Kiran E. Khosla, Alistair W. R. Smith +5
We introduce an optimisation method for variational quantum algorithms and experimentally demonstrate a 100-fold improvement in efficiency compared to naive implementations. The ef…