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The quantum period of a variety X is a generating function for certain Gromov-Witten invariants of X which plays an important role in mirror symmetry. In this paper we compute the quantum periods of all 3-dimensional Fano manifolds. In…

Algebraic Geometry · Mathematics 2021-06-02 Tom Coates , Alessio Corti , Sergey Galkin , Alexander Kasprzyk

Given a Fano variety $X$, and $U$ an affine log Calabi-Yau variety given as the complement of an anticanonical divisor $D \subset X$, we prove that for any snc compactification $Y$ of $U$ dominating $X$ with $D' = Y\setminus U$, there…

Algebraic Geometry · Mathematics 2025-08-26 Sam Johnston

Fano manifolds are basic building blocks in geometry - they are, in a precise sense, atomic pieces of shapes. The classification of Fano manifolds is therefore an important problem in geometry, which has been open since the 1930s. One can…

Algebraic Geometry · Mathematics 2022-10-28 Tom Coates , Alexander M. Kasprzyk

The mirror symmetric Gamma conjecture roughly speaking says that the Gamma class of a manifold determines the asymptotics of (exponential) periods of the mirror. We recast the method in [Iri11] in a more general context and show that the…

Algebraic Geometry · Mathematics 2024-11-08 Hiroshi Iritani

The Fano classification program proposed by Coates-Corti-Galkin-Golyshev-Kasprzyk is based on the mirror symmetry prediction that the regularized quantum period of a Fano should be equivalent to the classical period of its mirror…

Algebraic Geometry · Mathematics 2019-03-29 Travis Mandel

Given a smooth projective variety $X$ with a smooth anticanonical divisor $D$, we study mirror symmetry for the log Calabi--Yau pair $(X,D)$ without assuming that $D$ is nef. We consider the mirror proper Landau--Ginzburg model $(\check…

Algebraic Geometry · Mathematics 2025-10-16 Fenglong You

We construct and apply Strominger-Yau-Zaslow mirror transformations to understand the geometry of the mirror symmetry between toric Fano manifolds and Landau-Ginzburg models.

Symplectic Geometry · Mathematics 2014-02-19 Kwokwai Chan , Naichung Conan Leung

The Ap\'ery numbers of Fano varieties are asymptotic invariants of their quantum differential equations. In this paper, we initiate a program to exhibit these invariants as (mirror to) limiting extension classes of higher cycles on the…

Algebraic Geometry · Mathematics 2024-02-21 Vasily Golyshev , Matt Kerr , Tokio Sasaki

A general technique is outlined for investigating supersymmetry properties of a charged spin-$\half$ quantum particle in time-varying electromagnetic fields. The case of a time-varying uniform magnetic induction is examined and shown to…

High Energy Physics - Theory · Physics 2009-09-25 V. Alan Kostelecký , V. I. Man'ko , Michael Martin Nieto , D. Rodney Truax

We consider mirror symmetry for Fano manifolds, and describe how one can recover the classification of 3-dimensional Fano manifolds from the study of their mirrors. We sketch a program to classify 4-dimensional Fano manifolds using these…

Algebraic Geometry · Mathematics 2021-06-02 Tom Coates , Alessio Corti , Sergey Galkin , Vasily Golyshev , Alexander Kasprzyk

We study fibers with isolated singularities of Landau-Ginzburg models for Fano threefolds of Picard rank one. We compare the data we get with maximal known lengths of exceptional collections in derived categories of coherent sheaves on the…

Algebraic Geometry · Mathematics 2026-01-26 Victor Przyjalkowski

We show that $G$-Fano threefolds are mirror-modular. 1. Mirror maps are inversed reversed Hauptmoduln for moonshine subgroups of $SL_2(\mathbb{R})$. 2. Quantum periods, shifted by an integer constant (eigenvalue of quantum operator on…

Algebraic Geometry · Mathematics 2018-09-11 Sergey Galkin

We describe recent progress in a program to understand the classification of three-dimensional Fano varieties with $\mathbb{Q}$-factorial terminal singularities using mirror symmetry. As part of this we give an improved and more conceptual…

Algebraic Geometry · Mathematics 2022-10-17 Tom Coates , Liana Heuberger , Alexander M. Kasprzyk

We demonstrate phase super-resolution in the absence of entangled states. The key insight is to use the inherent time-reversal symmetry of quantum mechanics: our theory shows that it is possible to \emph{measure}, as opposed to prepare,…

Quantum Physics · Physics 2008-11-26 K. J. Resch , K. L. Pregnell , R. Prevedel , A. Gilchrist , G. J. Pryde , J. L. O'Brien , A. G. White

We study the enumerativity of Gromov-Witten invariants where the domain curve is fixed in moduli and required to pass through the maximum possible number of points. We say a Fano manifold satisfies asymptotic enumerativity if such…

Algebraic Geometry · Mathematics 2024-12-04 Roya Beheshti , Brian Lehmann , Carl Lian , Eric Riedl , Jason Starr , Sho Tanimoto

We survey the approach to mirror symmetry via Laurent polynomials, outlining some of the main conjectures, problems, and questions related to the subject. We discuss: how to construct Landau--Ginzburg models for Fano varieties; how to apply…

Algebraic Geometry · Mathematics 2022-05-05 Alexander Kasprzyk , Victor Przyjalkowski

We discuss duality and mirror symmetry phenomena of Landau-Ginzburg orbifolds considering their elliptic genera. Under the duality (or mirror) transform performed by orbifoldizing the Landau-Ginzburg model via some discrete group of the…

High Energy Physics - Theory · Physics 2008-11-26 Toshiya Kawai , Sung-Kil Yang

In the first section of this note we show that the Theorem 1.8.1 of Bayer--Manin ([BaMa]) can be strengthened in the following way: {\it if the even quantum cohomology of a projective algebraic manifold $V$ is generically semi--simple, then…

Algebraic Geometry · Mathematics 2008-03-20 C. Hertling , Yu. Manin , C. Teleman

We discuss how the theory of quantum cohomology may be generalized to ``gravitational quantum cohomology'' by studying topological sigma models coupled to two-dimensional gravity. We first consider sigma models defined on a general Fano…

High Energy Physics - Theory · Physics 2015-06-26 Tohru Eguchi , Kentaro Hori , Chuan-Sheng Xiong

Quantum mechanics is sensitive to the geometry of the underlying space. Here, we present a framework for quantum scattering of a non-relativistic particle confined to a two-dimensional space. When the motion manifold hosts localized…

Quantum Physics · Physics 2024-02-19 Lars Meschede , Benjamin Schwager , Dominik Schulz , Jamal Berakdar
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