A century after the discovery of quantum mechanics, the meaning of quantum mechanics still
remains elusive. This is largely due to the puzzling nature of the wave function, the central …

The Many-Worlds Interpretation (MWI) of quantum mechanics holds that there are many
worlds which exist in parallel at the same space and time as our own. The existence of the …

A succinct summary is given of the problem of reconciling observation of black hole-like
objects with quantum mechanics. If quantum black holes behave like subsystems, and also …

If quantum theories of the world are true-and empirical evidence suggests they are-what do
they tell us about us, and the world? How should quantum theories make us reevaluate our …

I defend the extremist position that the fundamental ontology of the world consists of a vector
in Hilbert space evolving according to the Schrödinger equation. The laws of physics are …

We study the question of how to decompose Hilbert space into a preferred tensor-product
factorization without any preexisting structure other than a Hamiltonian operator, in particular …

We study the conservation of energy, or lack thereof, when measurements are performed in
quantum mechanics. The expectation value of the Hamiltonian of a system changes when …

A bstract We explicitly construct a class of holographic quantum error correction codes with
non-trivial centers in the code subalgebra. Specifically, we use the Bacon-Shor codes and …

There is a deeply entrenched view in philosophy and physics, the closed systems view,
according to which isolated systems are conceived of as fundamental. On this view, when a …

This paper sets up a perturbative treatment of the evolving quantum state of a gravitational
system, in a Schrödinger-like picture, working about a general background. This connects …