Patrick Pietzonka

Accuracy comes at a cost: Optimal localization against a flow

Till Welker, Patrick Pietzonka

How much work does it cost for a propelled particle to stay localized near a stationary target, defying both thermal noise and a constant flow that would carry it away? We study the control of such a particle in finite time and …

gb (code pays fourni par la source)

Edge Currents Shape Condensates in Chiral Active Matter

Boyi Wang, Patrick Pietzonka, Frank Jülicher

Chiral active matter, which breaks both parity symmetry and time-reversal symmetry, is ubiquitous in living systems. Here, we introduce a minimal two-dimensional chiral active lattice gas by incorporating stochastic, biased local rotations. At low temperatures, the system coarsens into condensates with chiral …

Edge Currents Shape Condensates in Chiral Active Matter

Boyi Wang, Patrick Pietzonka, Frank Jülicher

Chiral active matter, which breaks both parity symmetry and time-reversal symmetry, is ubiquitous in living systems. Here, we introduce a minimal two-dimensional chiral active lattice gas by incorporating stochastic, biased local rotations. At low temperatures, the system coarsens into condensates with chiral …

de, gb (code pays fourni par la source)

Accuracy Comes at a Cost: Optimal Localisation Against a Flow

Till Welker, Patrick Pietzonka

How much work does it cost for a propelled particle to stay localised near a stationary target, defying both thermal noise and a constant flow that would carry it away? We study the control of such a particle in finite time and …

Accuracy Comes at a Cost: Optimal Localisation Against a Flow

Till Welker, Patrick Pietzonka

How much work does it cost for a propelled particle to stay localised near a stationary target, defying both thermal noise and a constant flow that would carry it away? We study the control of such a particle in finite time and …

Condensate formation in a chiral lattice gas

Frank Jülicher, Patrick Pietzonka

Abstract We investigate the formation of condensates in a binary lattice gas in the presence of chiral interactions. These interactions differ between a given microscopic configuration and its mirror image. We consider a two-dimensional lattice gas with nearest-neighbour interactions, to which we …

Thermodynamic cost for precision of general counting observables

Patrick Pietzonka, Francesco Coghi

We analytically derive universal bounds that describe the tradeoff between thermodynamic cost and precision in a sequence of events related to some internal changes of an otherwise hidden physical system. The precision is quantified by the fluctuations in either the number of …

de, gb, se (code pays fourni par la source)

Thermodynamic cost for precision of general counting observables

Patrick Pietzonka, Francesco Coghi

We analytically derive universal bounds that describe the trade-off between thermodynamic cost and precision in a sequence of events related to some internal changes of an otherwise hidden physical system. The precision is quantified by the fluctuations in either the number of …

de, gb, se (code pays fourni par la source)

Second Law for Active Heat Engines

Arya Datta, Patrick Pietzonka, Andre C. Barato

A reformulation of the second law of thermodynamics describes the unusual behavior of cyclic heat engines in contact with an active bath and explains how they operate in regimes not accessible to passive heat engines.

us, de (code pays fourni par la source)

Classical Pendulum Clocks Break the Thermodynamic Uncertainty Relation

Patrick Pietzonka

The thermodynamic uncertainty relation expresses a seemingly universal trade-off between the cost for driving an autonomous system and precision in any output observable. It has so far been proven for discrete systems and for overdamped Brownian motion. Its validity for the more …

gb, de (code pays fourni par la source)

Cycle counts and affinities in stochastic models of nonequilibrium systems.

Patrick Pietzonka, Jules Guioth, Robert L. Jack

For nonequilibrium systems described by finite Markov processes, we consider the number of times that a system traverses a cyclic sequence of states (a cycle). The joint distribution of the number of forward and backward instances of any given cycle is described …

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Bayesian inference across multiple models suggests a strong increase in lethality of COVID-19 in late 2020 in the UK

Patrick Pietzonka, Erik Brorson, William Bankes, Michael E. Cates et autres

We apply Bayesian inference methods to a suite of distinct compartmental models of generalised SEIR type, in which diagnosis and quarantine are included via extra compartments. We investigate the evidence for a change in lethality of COVID-19 in late autumn 2020 in …

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