Abstract: Using the modified Villain
lattice Hamiltonian formulation of the 1+1d compact boson theory,
we construct exactly solvable abelian chiral lattice gauge theories
in two spacetime dimensions. As a concrete example, we derive an
explicit...
Abstract: The Swampland Cobordism conjecture
asserts that in quantum gravity, any spacetime can terminate, i.e.,
the cobordism group of quantum gravity is trivial. A striking
consequence of this conjecture is that it predicts the existence
of...
Abstract: For Pauli stabilizer codes—such as
surface codes and color codes—transversal logical gates are
strongly constrained by the Bravyi–König bound. In particular,
implementing a non-Clifford gate transversally (as required for
universality)...
Abstract: The theory of compact-object birth
and core-collapse supernovae is now entering a new and productive
phase of rapid insight into themechanism and systematics of
explosion. The panoramic perspective provided by the recent access
to tens of...
Details: Cosmological observables, from the
Lyman-alpha forest to the Milky Way substructure, offer unique
avenues for probing dark matter and neutrino sectors. Moreover,
they often reveal anomalies and tensions that could signal new
physics. I will...
Abstract: It is believed that topologically
ordered gapped local Hamiltonians in 2+1d consisting of commuting
terms may not realize a chiral anyon theory. There is even a
formula that expresses the chiral central charge of the edge theory
as an...
Abstract: We will present a commutation vector
field approach for the solutions to the massless Vlasov equation on
the exterior of a Schwarzschild spacetime, together with extensions
to subextremal Kerr black holes. The approach satisfies two...
Abstract: Category theory has long been a standard language for
TQFTs with discrete valued degrees of freedom (and more recently,
for discrete generalized symmetries). Is the categorical
perspective also useful for more ordinary problems in
physics...
