Research
On-device research index

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

Trend · papers per month

20416181 · Jun 202019922001200920172026
48 results for quantum aspects

Study of quantum aspects of generalized Gross-Neveu models, focusing on sigma models.

problem Quantum aspects and anomalies in generalized Gross-Neveu models.
method Admissible gauge Aμ=0A_μ=0, study of chiral anomalies, integration over moduli spaces of connections on a Riemann surface.
result Integration over moduli spaces of connections on a Riemann surface.

Study quantum aspects of 1-form symmetries using BV-BRST cohomology.

problem Quantum aspects of gauging continuous 1-form global symmetries.
method BV-BRST quantization of a U(1) 2-form gauge field, Lie 2-algebroid construction, Čech-de Rham bicomplex.
result Anomaly descent for U(1) 1-form symmetries is naturally set up in the Čech-de Rham bicomplex.

Writing the article-Time independent pricing of options in range bound markets; the question in the title came naturally to my mind. It is stated, in the above article, that in certain market conditions the stock price is subjected to an equation that exactly matches a time independent Schrodinger equation. The time in…

2013-05-07abs ↗pdf ↗

Study quantum aspects of 1-form symmetries using BV-BRST cohomology and gerbes.

problem Quantum aspects of gauging continuous 1-form global symmetries.
method BV-BRST quantization of a U(1) 2-form gauge field, Lie 2-algebroid construction, Čech-de Rham bicomplex.
result Anomaly descent for U(1) 1-form symmetries is naturally set up in the Čech-de Rham bicomplex.

We discuss in some generality aspects of noncommutative differential geometry associated with reality conditions and with differential calculi. We then describe the differential calculus based on derivations as generalization of vector fields, and we show its relations with quantum mechanics. Finally we formulate a gen…

1995-11-27abs ↗pdf ↗

The quantum differential equations can be regarded as examples of equations with certain universal properties which are of wider interest beyond quantum cohomology itself. We present this point of view as part of a framework which accommodates the KdV equation and other well known integrable systems. In the case of qua…

2009-06-03abs ↗pdf ↗

We use Bott periodicity to relate previously defined quantum classes to certain "exotic Chern classes" on BUBU. This provides an interesting computational and theoretical framework for some Gromov-Witten invariants connected with cohomological field theories. This framework has applications to study of higher dimension…

2009-12-15abs ↗pdf ↗

Although this article can be read independently, it is a continuation of the introduction to integrable systems aspects of quantum cohomology given in part 1 (math.DG/0104274). In the same elementary style, i.e. assuming basic properties of quantum cohomology and concentrating on the simplest nontrivial examples, the q…

2001-05-04abs ↗pdf ↗

This is a survey talk on one of the best known quantum knot invariants, the colored Jones polynomial of a knot, and its relation to the algebraic/geometric topology and hyperbolic geometry of the knot complement. We review several aspects of the colored Jones polynomial, emphasizing modularity, stability and effective …

2012-01-16abs ↗pdf ↗

In this article, we will prove that the subsectors of αα-induced sectors for MG^MM \rtimes \hat{G} \supset M forms a modular category, where MG^M \rtimes \hat{G} is the crossed product of MM by the group dual G^\hat{G} of a finite group GG. In fact, we will prove that it is equivalent to Müger's crossed product. By usi…

2004-04-28abs ↗pdf ↗

Geometric quantization shows compatibility of symmetries on coadjoint orbits and Kähler-Einstein manifolds.

problem Compatibility of symmetries in geometric quantization.
method Deformation and geometric quantization on Kähler manifolds, Hamiltonian actions.
result Strict compatibility of symmetries on coadjoint orbits and Kähler-Einstein manifolds.

This is an introduction to some of the analytic (or integrable systems) aspects of quantum cohomology which have attracted much attention during the last few years. The small quantum cohomology algebra, regarded as an example of a Frobenius manifold, is described in the original naive manner, without going into the tec…

2001-04-28abs ↗pdf ↗

Applications of Quantum Tunneling effect have long gone beyond the traditional physical meaning. Initially created by Gamow to explain α-decay of nuclear particles, along the time, quantum tunneling found fertile domain of research in chemistry and recently in biology, where the new discipline of Quantum Biology emerge…

2013-07-25abs ↗pdf ↗

We investigate aspects of Kauffman bracket skein algebras of surfaces and modules of 3-manifolds using quantum torus methods. These methods come in two flavors: embedding the skein algebra into a quantum torus related to quantum Teichmuller space, or filtering the algebra and obtaining an associated graded algebra that…

2019-10-03abs ↗pdf ↗

Geometric approach to quantum thermodynamics models state spaces and processes.

problem Quantum thermodynamics in the regime of non-equilibrium states.
method Contact geometry and principal fiber bundles to model quantum state spaces and processes.
result Geometric formulation reveals the fundamental thermodynamic relations and unattainability of the third law.

In "Isomonodromy aspects of the tt* equations of Cecotti and Vafa I. Stokes data" (arxiv:1209.2045) we described all smooth solutions of the two-function tt*-Toda equations in terms of asymptotic data, holomorphic data, and monodromy data. In this supplementary article we focus on the holomorphic data and its interpret…

2012-09-11abs ↗pdf ↗

We investigate the perturbative aspects of Rozansky-Witten's 3d σσ-model using Costello's approach to the Batalin-Vilkovisky (BV) formalism. We show that the BV quantization (in Costello's sense) of the model, which produces a perturbative quantum field theory, can be obtained via the configuration space method of reg…

2015-02-12abs ↗pdf ↗

Quantum ELMs use a quantum reservoir to learn from data, with limits on expressivity and scalability.

problem Understanding the limits of quantum ELMs for machine learning tasks.
method Decomposed QELM predictions into Fourier series to analyze expressivity and scalability.
result Expressivity of QELMs is limited by the number of Fourier frequencies and observables, and scalability is hindered by hardware noise and entanglement.

Kauffman and Lomonaco explored the idea of understanding quantum entanglement (the non-local correlation of certain properties of particles) topologically by viewing unitary entangling operators as braiding operators. In the work of G. Alagic, M. Jarret, and S. Jordan it is shown that entanglement is a necessary condit…

2016-11-24abs ↗pdf ↗

Quantum algorithms improve regret bounds for bandits with knapsacks.

problem Combining stochastic integer programming and online learning.
method Quantum algorithms for BwK with improved regret and time complexities.
result Quantum algorithms achieve better regret bounds than classical methods.

The present paper describes a practical example in which the probability distribution of the prices of a stock market blue chip is calculated as the wave function of a quantum particle confined in a potential well. This model may naturally explain the operation of several empirical rules used by technical analysts. Mod…

2019-01-30abs ↗pdf ↗

We review the representation theory of the quantum group Uεsl2CU_εsl_2\mathbb{C} at a root of unity εε of odd order, focusing on geometric aspects related to the 3-dimensional quantum hyperbolic field theories (QHFT). Our analysis relies on the quantum coadjoint action of De Concini-Kac-Procesi, and the theory of Heisenbe…

2011-01-18abs ↗pdf ↗

I review some recent results on four-manifold invariants which have been obtained in the context of topological quantum field theory. I focus on three different aspects: (a) the computation of correlation functions, which give explicit results for the Donaldson invariants of non-simply connected manifolds, and for gene…

2000-08-11abs ↗pdf ↗

NNs accurately predict energy eigenvalues and other physical phenomena in 1D quantum mechanics.

problem Understanding how neural networks interpret physics.
method Training NNs to predict energy eigenvalues from potentials and testing their ability to generalize.
result NNs can predict physical phenomena not learned during training, indicating a new way of understanding physics.

Machine learning speeds up quantum chemical calculations of excited states.

problem Accurate quantum chemical calculations of excited states are computationally expensive.
method Employing machine learning to speed up and advance excited-state simulations in various fields.
result Machine learning techniques can significantly reduce computational time for excited-state simulations.

The mixture of Gaussian distributions, a soft version of k-means , is considered a state-of-the-art clustering algorithm. It is widely used in computer vision for selecting classes, e.g., color, texture, and shapes. In this algorithm, each class is described by a Gaussian distribution, defined by its mean and covarianc…

2016-12-29abs ↗pdf ↗

New framework for cyclic quantum causal models with graph separation property.

problem Understanding causal relationships in feedback processes and exotic scenarios.
method Introducing a robust probability rule and a novel graph-separation property, p-separation.
result Established graph-separation properties for all consistent cyclic causal models.

The analysis of mathematical structure of the method of operator manifold guides our discussion. The latter is a still wider generalization of the method of secondary quantization with appropriate expansion over the geometric objects. The nature of operator manifold provides its elements with both quantum field and geo…

1997-10-10abs ↗pdf ↗

Quantizes geodesic lengths in Teichmüller spaces using algebraic methods.

problem Constructing quantized geodesic lengths for Teichmüller spaces.
method Developed quantum trace maps and investigated algebraic structures.
result Showed a recursion relation and commutation properties for quantized trace-of-monodromy.

Quantum reservoir computing needs coherence influx for effective information processing.

problem Understanding and optimizing quantum reservoir computing.
method Theoretical and numerical analysis of quantum systems, focusing on coherence influx and spectral radius of Pauli transfer matrix.
result Coherence influx is essential for realizing nonstationary echo state property in quantum reservoir computing.