Filters
5951 results
Non-interactive zero-knowledge arguments for QMA, with preprocessing
Zero-knowledge proofs are one of the cornerstones of modern cryptography. It is well known that any language in NP admits a zero-knowledge proof. In the quantum setting, it is possible...
Sep 30, 2020
How does a dark compact object ringdown?
Gravitational waves from the coalescence of compact binaries provide a unique opportunity to test gravity in strong field regime. In particular, the postmerger phase of the gravitational signal is a...
Oct 01, 2020
On the geometry of nodal domains for random eigenfunctions on compact surfaces
A classical result of R. Courant gives an upper bound for the count of nodal domains (connected components of the complement of where a function vanishes) for Dirichlet eigenfunctions on...
Oct 01, 2020
Controlling Majorana zero modes with machine learning
Majorana zero modes have attracted much interest in recent years because of their promising properties for topological quantum computation. A key question in this regard is how fast two Majoranas...
Oct 02, 2020
Electrodynamics of Thin Sheets of Twisted Material
We construct a minimal theory describing the optical activity of a thin sheet of a twisted material, the simplest example of which is twisted bilayer graphene. We introduce the notion...
Oct 05, 2020
A microscopic black hole window on large extra dimensions and dark matter
Hoop conjecture suggests that microscopic black holes can be produced in collisions of high energy particles if the fundamental gravity scale is lowered to the electroweak scale in extra dimension...
Oct 06, 2020
Cosmology from current and future spectroscopic galaxy surveys
Mapping of galaxy density fluctuations on large scales is one of the most important goals of observational cosmology in this decade. These observations can significantly improve our knowledge of the...
Oct 06, 2020
Leading order correction to the QES prescription
We show that a naïve application of the quantum extremal surface (QES) prescription can lead to paradoxical results and must be corrected at leading order. The corrections arise when there...
Oct 06, 2020
Quantum algorithms for the Petz recovery channel, pretty-good measurements and polar decomposition
The Petz recovery channel plays an important role in quantum information science as an operation that approximately reverses the effect of a quantum channel. The pretty good measurement is a...
Oct 07, 2020