21 citations · 54 across the 6 of their papers we have counts for
7 papers
Fundamental bound on Wigner negativity generation from environmental collisions
Isaac Layton, Takahiro Sagawa, Ken Funo
Beyond quadratic potentials, classical evolution laws are typically thought to arise from quantum theory as an approximate description. Here we show that classical evolution laws c…
Fixing semi-classical physics from first principles: how to derive effective classical-quantum dynamics from open quantum theory
Isaac Layton
Semi-classical approaches approximate fully quantum descriptions with partially classical ones. Here we use a toy model to highlight the failings of the standard mean-field semi-cl…
A one-world interpretation of quantum mechanics
Isaac Layton, Jonathan Oppenheim, Zachary Weller-Davies
The measurement problem is the issue of explaining how the objective classical world emerges from a quantum one. Here we take a different approach. We assume that there is an objec…
Restoring the second law to classical-quantum dynamics
Isaac Layton, Harry J. D. Miller
All physical theories should obey the second law of thermodynamics. However, existing proposals to describe the dynamics of hybrid classical-quantum systems either violate the seco…
The classical-quantum limit
Isaac Layton, Jonathan Oppenheim
The standard notion of a classical limit, represented schematically by , provides a method for approximating a quantum system by a classical one. In this work w…
The weak field limit of quantum matter back-reacting on classical spacetime
Isaac Layton, Jonathan Oppenheim, Andrea Russo +1
Consistent coupling of quantum and classical degrees of freedom exists so long as there is both diffusion of the classical degrees of freedom and decoherence of the quantum system.…
A healthier semi-classical dynamics
Isaac Layton, Jonathan Oppenheim, Zachary Weller-Davies
We study the back-reaction of quantum systems onto classical ones. Taking the starting point that semi-classical physics should be described at all times by a point in classical ph…