Tootfinder

Orthogonal Frequency Division Multiplexing Continuous Variable Terahertz Quantum Key Distribution
Mingqi Zhang, Kaveh Delfanazari
https://arxiv.org/abs/2506.22985

Orthogonal Frequency Division Multiplexing Continuous Variable Terahertz Quantum Key Distribution
We propose a novel continuous-variable quantum key distribution (CVQKD) protocol that employs orthogonal frequency-division multiplexing (OFDM) in the terahertz (THz) band to enable high-throughput and secure quantum communication. By encoding quantum information across multiple subcarriers, the protocol enhances spectral efficiency and mitigates channel dispersion and atmospheric attenuation. We present a comprehensive security analysis under collective Gaussian attacks, considering both terre…

Learning collective variables that respect permutational symmetry
Jiaxin Yuan, Shashank Sule, Yeuk Yin Lam, Maria Cameron
https://arxiv.org/abs/2507.00408 …

Learning collective variables that respect permutational symmetry
In addition to translational and rotational symmetries, clusters of identical interacting particles possess permutational symmetry. Coarse-grained models for such systems are instrumental in identifying metastable states, providing an effective description of their dynamics, and estimating transition rates. We propose a numerical framework for learning collective variables that respect translational, rotational, and permutational symmetries, and for estimating transition rates and residence tim…

hiv_transmission: HIV transmission network (1988-2001)
A set of networks of HIV transmissions between people through sexual, needle-sharing, or social connections, based on combining 8 datasets collected from 1988 to 2001. Metadata includes test results of several diseases, as well as demographic variables such as age, ethnicity, and gender. Networks come in two flavors: egodyads and altdyads. Egodyads are the network among study-participants and their direct partners. Altdyads are the…

clustra: A multi-platform k-means clustering algorithm for analysis of longitudinal trajectories in large electronic health records data
Nimish Adhikari, Hanna Gerlovin, George Ostrouchov, Rachel Ehrbar, Alyssa B. Dufour, Brian R. Ferolito, Serkalem Demissie, Lauren Costa, Yuk-Lam Ho, Laura Tarko, Edmon Begoli, Kelly Cho, David R. Gagnon
https://

clustra: A multi-platform k-means clustering algorithm for analysis of longitudinal trajectories in large electronic health records data
Background and Objective: Variables collected over time, or longitudinally, such as biologic measurements in electronic health records data, are not simple to summarize with a single time-point, and thus can be more holistically conceptualized as trajectories over time. Cluster analysis with longitudinal data further allows for clinical representation of groups of subjects with similar trajectories and identification of unique characteristics, or phenotypes, that can be investigated as risk fac…

Microscopic pairing in fission dynamics
A. Zdeb, A. Baran, S. A. Giuliani, L. M. Robledo, M. Warda
https://arxiv.org/abs/2507.00664 https://

Microscopic pairing in fission dynamics
Nuclear fission can be modelled as a quantum tunneling process driven by the interplay between the nuclear binding energy and the collective inertia. Within the Wentzel-Kramers-Brillouin formalism, spontaneous fission half-lives can be obtained by minimizing the action integral in the multidimensional space of collective degrees of freedom. Hence, including the relevant collective variables is crucial for properly describing spontaneous fission probabilities. Pairing correlations play an essent…

hiv_transmission: HIV transmission network (1988-2001)
A set of networks of HIV transmissions between people through sexual, needle-sharing, or social connections, based on combining 8 datasets collected from 1988 to 2001. Metadata includes test results of several diseases, as well as demographic variables such as age, ethnicity, and gender. Networks come in two flavors: egodyads and altdyads. Egodyads are the network among study-participants and their direct partners. Altdyads are the…

An Explicit Formula for Vertex Enumeration in the CUT(n) Polytope via Probabilistic Methods
Nevena Mari\'c
https://arxiv.org/abs/2506.21787 https://

An Explicit Formula for Vertex Enumeration in the CUT(n) Polytope via Probabilistic Methods
The cut polytope $\operatorname{CUT}(n)$, defined as the convex hull of cut vectors in the complete graph $K_n$, is a central object in combinatorial optimization, with applications ranging from max-cut problems to correlation analysis. Building on a probabilistic interpretation via agreement probabilities among symmetric Bernoulli random variables, we derive an explicit closed-form formula for enumerating the vertices of the related polytope $1$-$\operatorname{CUT}(n)$. Our approach is based o…

Time-structured models of population growth in fluctuating environments
Pradeep Pillai, Tarik C. Gouhier
https://arxiv.org/abs/2506.23380 https://

Time-structured models of population growth in fluctuating environments
1. Although environmental variability is expected to play a more prominent role under climate change, current demographic models that ignore the differential environmental histories of cohorts across generations are unlikely to accurately predict population dynamics and growth. The use of these approaches, which we collectively refer to as non time-structured models or nTSMs, will instead yield error-prone estimates by giving rise to a form of ecological memory loss due to their inability to ac…

On the Exceptional Sets of Transcendental Analytic Functions in Several Variables with Integer Coefficients
Jean Lelis, Bruno De Paula Miranda, Carlos Gustavo Moreira
https://arxiv.org/abs/2506.15914

On the Exceptional Sets of Transcendental Analytic Functions in Several Variables with Integer Coefficients
In 2020, Marques and Moreira proved that every subset of $\overline{\mathbb{Q}} \cap B(0,1)$, which is closed under complex conjugation and contains $0$, is the exceptional set of uncountably many transcendental analytic functions with integer coefficients. In this paper, we extend this result to transcendental analytic functions in several variables. In particular, we show that every subset of $\overline{\mathbb{Q}}^m$ contained in the unit polydisc $Δ(0;1)$, closed under complex conjugation …

Collective excitations in Hydrogen across the pressure-induced transition from molecular to atomic fluid
I. -M. Ilenkov, T. Bryk
https://arxiv.org/abs/2506.20791

Collective excitations in Hydrogen across the pressure-induced transition from molecular to atomic fluid
Dispersion of collective excitations in fluid Hydrogen along the isothermal line T=2500~K, including the region of molecular-to-atomis fluid transition, is studied by ab initio molecular dynamics (AIMD) simulations. The obtained density dependence of the adiabatic and high-frequency speed of sound contains a plateau in the region of the molecular-to-atomic fluid transition. We show, that the five-variable thermo-viscoelastic model of generalized hydrodynamics for pure molecular H$_2$ and pure a…