2 citations · 3 across the 10 of their papers we have counts for
12 papers
Quantum minimum description of density matrices
Patrick Hayden, Alexander Maloney, Jinzhao Wang +1
We study a variant of Schumacher compression. The task asks for the minimal memory cost for compressing many copies of a density matrix with known spectrum and unknown eigenbasis,…
Refined sample complexities from the tomographic rate function
Arick Grootveld, Alexander Maloney, Jason Pollack +1
Protocols for quantum state tomography can be characterized either by their sample complexity or by the tomographic rate function that governs the large deviation behaviour of erro…
The Optimal Rate Function in Covariant Quantum State Tomography
Arick Grootveld, Alexander Maloney, Jason Pollack +1
The problem of quantum tomography is to estimate an unknown quantum state from a measurement of copies of . One can ask which tomography protocol, i.e.\ which choice of…
BBP Phase Transition for an Extensive Number of Outliers
Niklas Forner, Alexander Maloney, Bernd Rosenow
Random-matrix theory helps disentangle signal from noise in large data sets. We analyze rectangular matrices in which the noise generates a Marchenko…
Imprint of the black hole singularity on thermal two-point functions
Nima Afkhami-Jeddi, Simon Caron-Huot, Joydeep Chakravarty +1
We consider two-point functions of light fields at finite temperature and large real frequencies in holographic theories. The thermal system is dual to a single-sided AdS black hol…
A measure on the space of CFTs and pure 3D gravity
Alexandre Belin, Alexander Maloney, Florian Seefeld
We define a normalizable measure on the space of two-dimensional conformal field theories, which we interpret as a maximum ignorance ensemble. We test whether pure quantum gravity…
The spectrum of pure dS gravity in the static patch
Joydeep Chakravarty, Alexander Maloney, Keivan Namjou +1
We consider the quantum mechanical description of the de Sitter static patch in three-dimensional general relativity. We consider a Lorentzian path integral that conjecturally comp…
Lindblad evolution as gradient flow
Greg Kaplanek, Alexander Maloney, Jason Pollack +1
We give a simple argument that, for a large class of jump operators, the Lindblad evolution can be written as a gradient flow in the space of density operators acting on a Hilbert…
Ordinary wormholes
Alexander Maloney, Viraj Meruliya, Mark Van Raamsdonk
Euclidean wormholes have played a key role in the recent ``disorder averaged" approaches to quantum gravity and holography, but are typically only considered in somewhat special th…
Resurgence in Liouville Theory
Nathan Benjamin, Scott Collier, Alexander Maloney +1
Liouville conformal field theory is a prototypical example of an exactly solvable quantum field theory, in the sense that the correlation functions in an arbitrary background can b…
A new observable for holographic cosmology
Joydeep Chakravarty, Alexander Maloney, Keivan Namjou +1
The double-cone geometry is a saddle of the gravitational path integral, which explains the chaotic statistics of the spectrum of black hole microstates. This geometry is the usual…
Liouville theory and the Weil-Petersson geometry of moduli space: bordered, conic, and higher genus surfaces
Kale Colville, Sarah M. Harrison, Alexander Maloney +1
Two-dimensional conformal field theory is a powerful tool to understand the geometry of surfaces. Here, we study Liouville conformal field theory in the classical (large central ch…