We study near-horizon Carnot engines in black brane spacetimes beyond the Schwarzschild case, exploring the thermodynamic properties of black branes and their implications for the efficiency of thermodynamic cycles in curved spacetime.

We investigate thermalization by synthetic horizons in a one-dimensional atomic chain and establish a connection to quantum Hall physics, providing new pathways for experimental exploration of gravitational analogies in condensed matter.

We propose a witness for superluminal signalling that can be used to constrain models of quantum state reduction, providing an experimentally testable criterion to distinguish between different objective collapse theories.

We study the dynamics of stochastic fields in models of spontaneous unitarity violation, extending the framework for objective collapse theories and analysing the conditions under which Born’s rule emerges from the stochastic evolution.

We extend McMillan’s Ginzburg-Landau theory for charge density waves to two dimensions, introducing discommensurations as topological defects and studying their role in the phase structure of charge density wave systems such as TaS₂.

We show that tilted Weyl semimetals with a spatially varying tilt provide a platform for studying analogues to anisotropic optics and curved spacetime, demonstrating gravitational lensing around a synthetic black hole.

We present a minimal objective collapse theory that does not employ state-dependent stochastic terms, providing proof of principle that Born’s rule can emerge from a stochastic evolution independent of the state being evolved.

We address an apparent contradiction between envariance arguments and the result that linear collapse models cannot give rise to Born’s rule, showing that envariance implies only that every state allows a measurement machine yielding Born’s rule for that particular state.

We introduce a family of models for spontaneous unitarity violation that apply to generic initial superpositions over arbitrarily many states, showing that Born’s probability rule emerges spontaneously in all cases.

By quenching to position-dependent hopping amplitudes in a lattice model, we establish the emergence of a thermal state at the Unruh temperature accompanying the formation of a synthetic horizon, paving the way to experimental exploration of quantum-gravitational aspects.

We show that requiring the emergence of Born’s rule without imposing it as an axiom implies that objective collapse theories cannot be linear, resolving inconsistencies in previous arguments based on envariance.