activity
20112024
most citedFrom non equilibrium quantum Brownian motion to impurity dynamics in 1D quantum liquids

38 citations · 75 across the 8 of their papers we have counts for

collaborators

13 papers

q-fin.ST2024

"Microstructure Modes" -- Disentangling the Joint Dynamics of Prices & Order Flow

Salma Elomari-Kessab, Guillaume Maitrier, Julius Bonart +1

Understanding the micro-dynamics of asset prices in modern electronic order books is crucial for investors and regulators. In this paper, we use an order by order Eurostoxx databas…

cond-mat.other2020

Scaling behavior of the momentum distribution of a quantum Coulomb system in a confining potential

J. A. E. Bonart, W. H. Appelt, D. Vollhardt +1

We calculate the single-particle momentum distribution of a quantum many-particle system in the presence of the Coulomb interaction and a confining potential. The region of interme…

q-fin.ST2016

Order statistics of horse racing and the randomly broken stick

Peter A. Bebbington, Julius Bonart

We find a remarkable agreement between the statistics of a randomly divided interval and the observed statistical patterns and distributions found in horse racing betting markets.…

q-fin.TR2016

A continuous and efficient fundamental price on the discrete order book grid

Julius Bonart, Fabrizio Lillo

This paper develops a model of liquidity provision in financial markets by adapting the Madhavan, Richardson, and Roomans (1997) price formation model to realistic order books with…

q-fin.TR2015

Queue Imbalance as a One-Tick-Ahead Price Predictor in a Limit Order Book

Martin D. Gould, Julius Bonart

We investigate whether the bid/ask queue imbalance in a limit order book (LOB) provides significant predictive power for the direction of the next mid-price movement. We consider t…

q-fin.TR2015

Latency and liquidity provision in a limit order book

Julius Bonart, Martin Gould

We use a recent, high-quality data set from Nasdaq to perform an empirical analysis of order flow in a limit order book (LOB) before and after the arrival of a market order. For ea…

q-fin.TR2014

A Million Metaorder Analysis of Market Impact on the Bitcoin

Jonathan Donier, Julius Bonart

We present a thorough empirical analysis of market impact on the Bitcoin/USD exchange market using a complete dataset that allows us to reconstruct more than one million metaorders…

q-fin.TR2014

A fully consistent, minimal model for non-linear market impact

Jonathan Donier, Julius Bonart, Iacopo Mastromatteo +1

We propose a minimal theory of non-linear price impact based on a linear (latent) order book approximation, inspired by diffusion-reaction models and general arguments. Our framewo…

econ.GN2014★ 12 cited

Instabilities in large economies: aggregate volatility without idiosyncratic shocks

Julius Bonart, Jean-Philippe Bouchaud, Augustin Landier +1

We study a dynamical model of interconnected firms which allows for certain market imperfections and frictions, restricted here to be myopic price forecasts and slow adjustment of…

quant-ph2013★ 6 cited

Exact dynamics and thermalization of an open bosonic quantum system in presence of a quantum phase transition induced by the environment

A. Rancon, J. Bonart

We derive the exact out-of-equilibrium Wigner function of a bosonic mode linearly coupled to a bosonic bath of arbitrary spectral density. Our solution does not rely on any master…

cond-mat.stat-mech2013★ 7 cited

The dissipative phase transition in a pair of coupled noisy two-level systems

Julius Bonart

We study the renormalization group (RG) equations of a pair of spin-boson systems coupled in the z-direction with each other. Each spin is coupled to a different bath of harmonic o…

cond-mat.quant-gas2012★ 38 cited

From non equilibrium quantum Brownian motion to impurity dynamics in 1D quantum liquids

Julius Bonart, Leticia F. Cugliandolo

Impurity motion in one dimensional ultra cold quantum liquids confined in an optical trap has attracted much interest recently. As a step towards its full understanding, we constru…

cond-mat.stat-mech2011★ 12 cited

Critical Langevin dynamics of the O(N)-Ginzburg-Landau model with correlated noise

Julius Bonart, Leticia F. Cugliandolo, Andrea Gambassi

We use the perturbative renormalization group to study classical stochastic processes with memory. We focus on the generalized Langevin dynamics of the ϕ^4 Ginzburg-Landau model wi…