As part of an All-Sky Automated Survey for SuperNovae (ASAS-SN) search sources with large flux decrements, we discovered a transient where the quiescent, stellar source, ASASSN-V J192114.84+624950.8, rapidly decreased in by $\sim55\%$ ($\sim0.9$ mag) g-band. The \textit{TESS} light curve revealed that source is highly eccentric, eclipsing binary. Fits to using \textsc{phoebe} find binary orbit ...

We introduce a simplified fabrication technique for Josephson junctions and demonstrate superconducting Xmon qubits with $T_1$ relaxation times averaging above 50$~\mu$s ($Q>$1.5$\times$ 10$^6$). Current shadow-evaporation techniques aluminum-based require separate lithography step to deposit patch that makes galvanic, connection between the junction electrodes circuit wiring layer. The elimina...

We present a lattice calculation of the leading order (LO) hadronic vacuum polarization (HVP) contribution to muon anomalous magnetic moment for connected light and strange quarks, $a^{\rm W}_{{\rm con}, l/s}$ in widely used window $t_0=0.4~\mathrm{fm}$, $t_1=1.0~\mathrm{fm}$, $\Delta=0.15~\mathrm{fm}$, also S}_{{\rm short distance region. use overlap fermions on 4 physical-point ensembles. Two...

We show that the empirical risk minimization (ERM) problem for neural networks has no solution in general. Given a training set $$s_1, \ldots , s_n \in {\mathbb {R}}^p$$ with corresponding responses $$t_1,\ldots ,t_n {R}}^q$$ fitting k-layer network $$\nu _\theta : {R}}^p \rightarrow involves estimation of weights $$\theta {R}}^m$$ via an ERM: $$\begin{aligned} \inf _{\theta {R}}^m} \ \sum _{i=...

Motivated by the potential for cuprate-like superconductivity in monolayer rare-earth nickelate superlattices, we study effects of crystal field splitting, lattice distortions and strain on charge, magnetic, orbital order undoped two-dimensional (2D) monolayers $R$NiO$_3$. We use a two-band Hubbard model to describe low-energy electron states, with correlations controlled effective $U$ Hund's $...

Let \(X\), \(Y\) and \(Z\) be Banach spaces let \(U\) a subspace of \(\mathcal{L}(X^*,Y)\), the space all operators from \(X^*\) to \(Y\). An operator \(S\colon U \to Z\) is said \((\ell^s_p,\ell_p)\)-summing (where \(1\leq p <\infty\)) if there constant \(K\geq 0\) such that \(\left( \sum_{i=1}^n \|S(T_i)\|_Z^p \right)^{1/p}\le K\sup_{x^* \in B_{X^*}} \left(\sum_{i=1}^n \|T_i(x^*)\|_Y^p\right...

Spins constitute a group of quantum objects forming key resource in modern technology. Two-dimensional (2D) van der Waals materials are fundamental interest for studying nanoscale magnetic phenomena. However, isolating singular paramagnetic spins 2D systems is challenging. We report here on emitting source embedded within hexgonal boron nitride (h-BN) exhibiting optical resonance (ODMR). extrac...

BACKGROUND According to the World Alzheimer Report (Prince, The Global Impact of Dementia: an Analysis of Prevalence, Incidence, Cost and Trends, 2015), 46.8 million people worldwide are nowadays living with dementia. And this number is estimated to approximate 131.5 million by 2050, with an increasing burden on society and families. The lack of medical treatments able to stop or slow down the ...

Abstract $${\mathbb {Z}}_{p^s}$$ Z p s -additive codes of length n are subgroups {Z}}_{p^s}^n$$ n , and can be seen as a generalization linear over {Z}}_2$$ <mml...