Enrico Andriolo

Proof of entropic order in Generalized Ising Models

Enrico Andriolo, Mendel Nguyen, Emily Richards, Tin Sulejmanpašić

Ordering at arbitrarily high temperature - entropic order - has been argued to take place in a class of generalized Ising models parameterised by a real interaction parameter $p$ when $p\ge 1$. We give a rigorous proof of this conjecture. We further …

Proof of entropic order in Generalized Ising Models

Enrico Andriolo, Mendel Nguyen, Emily Richards, Tin Sulejmanpašić

Ordering at arbitrarily high temperature - entropic order - has been argued to take place in a class of generalized Ising models parameterised by a real interaction parameter $p$ when $p\ge 1$. We give a rigorous proof of this conjecture. We further …

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Time-dependent effects in consecutive cycles of prone positioning for acute respiratory failure: insights from the PROVENT-C19 Registry

Nicolò Sella, Annalisa Boscolo, A. Cortegiani, Giacomo Bellani et autres

BACKGROUND: Prone positioning is recommended for patients with acute respiratory distress syndrome not only to improve oxygenation, but also to reduce lung stress, and lower mortality. The association between improved oxygenation during prone position and reduced mortality is still controversial. In previous …

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Oxygenation improvement and duration of prone positioning are associated with ICU mortality in mechanically ventilated COVID-19 patients

Silvia De Rosa, Nicolò Sella, Giacomo Bellani, Giuseppe Foti et autres

BACKGROUND: Prone position has been diffusely applied in mechanically ventilated COVID-19 patients. Our aim is ascertaining the association between the physiologic response and the length of the first cycle of prone position and intensive care unit (ICU) mortality. METHODS: International registry including …

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Covariantly constant anomalies on conformal manifolds

Enrico Andriolo, Vasilis Niarchos, Constantinos Papageorgakis, Elli Pomoni

Operators with integer scaling dimensions in even-dimensional conformal field theories exhibit well-known type-B Weyl anomalies. In general, these anomalies depend nontrivially on exactly marginal couplings. We study the corresponding fully covariantized anomaly functional on conformal manifolds in several examples. We show that …

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Covariantly Constant Anomalies on Conformal Manifolds

Enrico Andriolo, Vasilis Niarchos, Constantinos Papageorgakis, Elli Pomoni

Operators with integer scaling dimensions in even-dimensional conformal field theories exhibit well-known type-B Weyl anomalies. In general, these anomalies depend non-trivially on exactly marginal couplings. We study the corresponding fully covariantised anomaly functional on conformal manifolds in several examples. We show that …

A path integral for the chiral-form partition function

Enrico Andriolo, Neil Lambert, Tristan Orchard, Constantinos Papageorgakis

Abstract Starting from the recent action proposed by Sen [1, 2], we evaluate the partition function of the compact chiral boson on a two-dimensional torus using a path-integral formulation. Crucially, we use a Wick-rotation procedure obtained from a complex deformation of the …

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Macdonald indices for four-dimensional N=3 theories

Prarit Agarwal, Enrico Andriolo, Gergely Kántor, Constantinos Papageorgakis

We brute-force evaluate the vacuum character for $\mathcal{N}=2$ vertex operator algebras labeled by crystallographic complex reflection groups $G(k,1,1)={\mathbb{Z}}_{k}$, $k=3$, 4, 6, and $G(3,1,2)$. For ${\mathbb{Z}}_{3,4}$ and $G(3,1,2)$ these vacuum characters have been conjectured to respectively reproduce the Macdonald limit of the superconformal …

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Aspects of String Pertubation Theory

Enrico Andriolo

We will examine the only known example in which supersymmetry can be spontaneously broken in superstring perturbation theory, despite being unbroken at the tree-level. We will be able to detect the breaking of the supersymmetry by looking at the mass-splitting that arises …

Contrazione di SU(2) sul Gruppo di Heisenberg

Enrico Andriolo

In this thesis we want to analyze the irreducible unitary representations of SU(2) and those of the Heisenberg group. The infinite-dimensional (irreducible unitary) representations of the Heisenberg group will be shown to be limits of finite (irreducible unitary) representations of SU(2). In …