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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,694 papers · 148 categories

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1223 · Sep 202319922001200920172026
48 results for non-perturbative

Introduces a new geometric framework for non-perturbative BV-theory.

problem Non-perturbative generalization of BV-theory in infinite-dimensional spaces.
method Derived differential geometry and homotopical algebraic geometry.
result Concrete model of derived smooth stacks for encoding non-perturbative BV-theory.

Perturbative string amplitudes are correctly derived from the string geometry theory, which is one of the candidates of a non-perturbative formulation of string theory. In order to derive non-perturbative effects rather easily, we formulate topological string geometry theory. We derive the perturbative partition functi…

2019-03-14abs ↗pdf ↗

Formally equates two quantization methods and constructs non-commutative algebras.

problem Equivalence of deformation and geometric quantization methods.
method Symplectic reduction and Lie 2-groupoid quantization.
result Recovery of strict deformation quantizations and non-associative products.

This paper analyzes ΔaΔ_a invariants in non-perturbative complex Chern-Simons theory.

problem Analyzing the structure and properties of ΔaΔ_a invariants.
method Reviewing foundations and analyzing structure for a subclass of integer homology spheres.
result The ΔaΔ_a invariants are not homology cobordism invariants.

New method proves instability of naked singularity and censors it.

problem Proving instability and censoring naked singularity.
method Einstein-scalar field system, hyperbolic short-pulse method, non-perturbative elliptic arguments.
result Tiny anisotropic perturbation leads to anisotropic apparent horizon censoring the naked singularity.

Study non-perturbative quantum geometry of string theories using finite difference equations and resurgence analysis.

problem Non-perturbative quantum geometry of open and closed topological string on the resolved conifold.
method Finite difference equations, resurgence analysis, exact WKB techniques.
result Identify 5d BPS states and relate spectral problems to quantum integrable systems.

We define string geometry: spaces of superstrings including the interactions, their topologies, charts, and metrics. Trajectories in asymptotic processes on a space of strings reproduce the right moduli space of the super Riemann surfaces in a target manifold. Based on the string geometry, we define Einstein-Hilbert ac…

2017-09-11abs ↗pdf ↗

Singular fiber resolution does not describe the spontaneous breaking of gauge symmetry in F-theory, as the corresponding branch of the moduli space does not exist in the theory. Accordingly, even non-abelian gauge theories have not been fully understood in global F-theory compactifications. We present a systematic disc…

2014-02-24abs ↗pdf ↗

Mathematical structures link Gromov-Witten to Donaldson-Thomas invariants.

problem Understanding non-perturbative topological string theory.
method Borel summation of Gromov-Witten potential and analysis of Stokes phenomena.
result Stokes phenomena encode Donaldson-Thomas invariants of the resolved conifold.

ContrastiveVI+ models CRISPR screens with noisy guide efficiency.

problem Noisy guide efficiency in CRISPR screens.
method Generative modeling framework that disentangles perturbation-induced from shared variations.
result ContrastiveVI+ better recovers perturbation-induced variations and identifies cells without edits.

Derives path-integrals for superstrings on curved backgrounds using string geometry theory.

problem Calculating path-integrals for superstrings on curved backgrounds.
method Derives path-integrals from string geometry theory by considering fluctuations around string backgrounds.
result Derives path-integrals for perturbative superstrings on all string backgrounds.

Derives path integrals for perturbative strings on various backgrounds.

problem Calculating path integrals for strings on curved backgrounds.
method Derives path integrals from string geometry theory by considering fluctuations around string backgrounds.
result Derives path integrals of all order perturbative strings on various backgrounds.

Study of rotating gravastars with de Sitter interiors and Kerr exteriors.

problem Understanding the spacetime structure of rotating gravastars and black hole mimickers.
method Exact analytical solutions for CnC^{n} metrics with de Sitter interiors and Kerr exteriors.
result Existence of CnC^{n} metrics with arbitrary differentiability, respecting energy conditions.

We propose a non-perturbative formulation of the Atiyah-Patodi-Singer(APS) index in lattice gauge theory, in which the index is given by the ηη invariant of the domain-wall Dirac operator. Our definition of the index is always an integer with a finite lattice spacing. To verify this proposal, using the eigenmode set o…

2019-10-21abs ↗pdf ↗

We show that the four derivative terms in the effective action of three-dimensional N=8 Yang-Mills theory are determined by supersymmetry. These terms receive both perturbative and non-perturbative corrections. Using our technique for constraining the effective action, we are able to determine the exact form of the eig…

1998-08-19abs ↗pdf ↗

Lectures on deep learning properties in infinite and large-width networks.

problem Understanding deep neural networks in extreme width conditions.
method Analysis of random deep neural networks, connections to linear models, kernels, and Gaussian processes, perturbative and non-perturbative treatments.
result Properties and behaviors of deep neural networks in the infinite-width limit and large-width regime.

We use the twistorial construction of D-instantons in Calabi-Yau compactifications of type II string theory to compute an explicit expression for the metric on the hypermultiplet moduli space affected by these non-perturbative corrections. In this way we obtain an exact quaternion-Kahler metric which is a non-trivial d…

2014-12-28abs ↗pdf ↗

The standard Black-Scholes theory of option pricing is extended to cope with underlying return fluctuations described by general probability distributions. A Langevin process and its related Fokker-Planck equation are devised to model the market stochastic dynamics, allowing us to write and formally solve the generaliz…

2006-02-08abs ↗pdf ↗

Quantum Kerr learning shows enhancements in convergence and generalization for kernel-based methods.

problem Improving convergence and generalization in kernel-based methods for quantum computing.
method Combining quantum mechanics with neural tangent kernel theory and first-order perturbation theory.
result Quantum enhancements in terms of convergence time and generalization error.

We identify a large class R of three-dimensional N=2 superconformal field theories. This class includes the effective theories T_M of M5-branes wrapped on 3-manifolds M, discussed in previous work by the authors, and more generally comprises theories that admit a UV description as abelian Chern-Simons-matter theories w…

2011-12-21abs ↗pdf ↗

We consider aspects of Chern-Simons theory on L(p,q) lens spaces and its relation with matrix models and topological string theory on Calabi-Yau threefolds, searching for possible new large N dualities via geometric transition for non-SU(2) cyclic quotients of the conifold. To this aim we find, on one hand, some novel …

2008-09-09abs ↗pdf ↗

Study wave functions in complex Chern-Simons theory, finding integrality and rational points.

problem Understanding wave functions in complex Chern-Simons theory.
method Conjecture and prove integrality structure, develop techniques to determine wave functions at rational points.
result Wave functions have integrality structure and can be determined at rational points.

We use the 3d-3d correspondence together with the DGG construction of theories Tn[M]T_n[M] labelled by 3-manifolds M to define a non-perturbative state-integral model for SL(n,C) Chern-Simons theory at any level k, based on ideal triangulations. The resulting partition functions generalize a widely studied k=1 state-integ…

2014-09-02abs ↗pdf ↗

Study of IR phases in 3D class R theories linked to non-hyperbolic 3-manifolds.

problem Understanding IR phases of 3D class R theories associated with non-hyperbolic 3-manifolds.
method Analysis of IR phenomena through `exceptional' Dehn fillings and gauging of flavor symmetries.
result 3D class R theories associated with certain atoroidal non-hyperbolic 3-manifolds exhibit supersymmetry enhancement at low energy.

Using probabilistic methods, we first define Liouville quantum field theory on Riemann surfaces of genus g2\mathbf{g}\geq 2 and show that it is a conformal field theory. We use the partition function of Liouville quantum field theory to give a mathematical sense to Polyakov's partition function of noncritical bosonic s…

2016-07-28abs ↗pdf ↗

Many four-dimensional supersymmetric compactifications of F-theory contain gauge groups that cannot be spontaneously broken through geometric deformations. These "non-Higgsable clusters" include realizations of SU(3)SU(3), SU(2)SU(2), and SU(3)×SU(2)SU(3) \times SU(2), but no SU(n)SU(n) gauge groups or factors with n>3n> 3. We study poss…

2014-09-29abs ↗pdf ↗

Precise scientific analysis in collider-based particle physics is possible because of complex simulations that connect fundamental theories to observable quantities. The significant computational cost of these programs limits the scope, precision, and accuracy of Standard Model measurements and searches for new phenome…

2019-07-18abs ↗pdf ↗

Complex Chern-Simons theory reveals peacock patterns in perturbative series.

problem Understanding the structure of partition functions in complex Chern-Simons theory.
method Analyzing the partition function as a holomorphic function and using resurgence theory.
result Perturbative series are resurgent, with trans-series involving non-perturbative variables.

Study shows translators can have non-removable singularities at infinity but eventually converge to unique planes.

problem Understanding singularities and convergence of translators at infinity.
method Global analysis of quasilinear soliton equations, sharp non-standard elliptic decay estimates, and potential theory.
result Finite entropy, finite genus translators converge to uniquely determined planes at infinity.