Primordial black hole formation during the QCD phase transition:
threshold, mass distribution and abundance
March 14, 2023
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Physics
Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Primordial black hole (PBH) formation during cosmic phase transitions and
annihilation periods, such as the QCD transition or the e+e−-annihilation,
is thought to be particularly efficient due to a softening of the equation of
state. We...
Spin-s Rational Q-system
March 14, 2023
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Physics
Mathematics
High Energy Physics - Theory
Mathematical Physics
Mathematical Physics
Exactly Solvable and Integrable Systems
Bethe ansatz equations for spin-s Heisenberg spin chain with s≥1 are
significantly more difficult to analyze than the spin-21​ case, due
to the presence of repeated roots. As a result, it is challenging to derive
extra cond...
Koszul duality for Coxeter groups
March 14, 2023
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Mathematics
Representation Theory
We construct a "Koszul duality" equivalence relating the (diagrammatic) Hecke
category attached to a Coxeter system and a given realization to the Hecke
category attached to the same Coxeter system and the dual realization. This
extends a c...
Guided Slot Attention for Unsupervised Video Object Segmentation
March 14, 2023
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Computer Science
Computer Vision and Pattern Recognition
Unsupervised video object segmentation aims to segment the most prominent
object in a video sequence. However, the existence of complex backgrounds and
multiple foreground objects make this task challenging. To address this issue,
we propos...
Schr\"odinger as a Quantum Programmer: Estimating Entanglement via
Steering
March 14, 2023
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Physics
Computer Science
Quantum Physics
Statistical Mechanics
Computational Complexity
Data Structures and Algorithms
High Energy Physics - Theory
Quantifying entanglement is an important task by which the resourcefulness of
a quantum state can be measured. Here we develop a quantum algorithm that tests
for and quantifies the separability of a general bipartite state, by making use
of...
Power-to-Frequency Conversion in Cryogenic Sapphire Resonators
March 14, 2023
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Physics
Instrumentation and Detectors
We studied how the cryogenic sapphire resonator responds to fast variations
of the dissipated microwave power. The experiments were carried out with
sapphire resonators cooled to 6 K at frequencies around 11 GHz. We found that
the power-to-...
Rotation-Invariant Transformer for Point Cloud Matching
March 14, 2023
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Computer Science
Computer Vision and Pattern Recognition
The intrinsic rotation invariance lies at the core of matching point clouds
with handcrafted descriptors. However, it is widely despised by recent deep
matchers that obtain the rotation invariance extrinsically via data
augmentation. As the...
Weak entanglement improves quantum communication using only product
measurements
March 14, 2023
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Physics
Quantum Physics
We show that weakly entangled states can improve communication over a qubit
channel using only separate, interference-free, measurements of individual
photons. We introduce a communication task corresponding to the cryptographic
primitive k...
Large impact of phonon lineshapes on the superconductivity of solid
hydrogen
March 14, 2023
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Physics
Superconductivity
Phonon anharmonicity plays a crucial role in determining the stability and
vibrational properties of high-pressure hydrides. Furthermore, strong
anharmonicity can render phonon quasiparticle picture obsolete questioning
standard approaches ...
Informational Rescaling of PCA Maps with Application to Genetic Distance
March 14, 2023
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Quantitative Biology
Mathematics
Computer Science
Populations and Evolution
Information Theory
Information Theory
We discuss the inadequacy of covariances/correlations and other measures in
L2 as relative distance metrics under some conditions. We propose a
computationally simple heuristic to transform a map based on standard principal
component analys...