10 papers
A Spectral Route to Directed-Polymer Glasses
Sen Mu, Abbas Ali Saberi, Mehran Kardar
A finite density of mutually avoiding directed polymers in a quenched random medium is a minimal model of glassy line matter. The dilute theory, solved by replica Bethe ansatz, pre…
A Contactless Heat Engine Driven by Nonreciprocal Fluctuation-Induced Torques
Dhruv Shah, Kiryl Asheichyk, David Gelbwaser-Klimovsky +3
We describe a contactless heat engine in which quantum and thermal electromagnetic fluctuations act as the working medium. The setup consists of two concentric cylinders held at di…
Generic long-range correlations in nonequilibrium mixtures
Jessica Metzger, Yariv Kafri, Mehran Kardar +1
We study correlation functions in generic non-equilibrium mixtures, including multi-temperature systems and non-reciprocal field theories. The corresponding linear theory is short-…
Competition at the front of expanding populations
Sergio Eraso, Mehran Kardar
When competing species grow into new territory, the population is dominated by descendants of successful ancestors at the expansion front. Successful ancestry depends on both the r…
Minimal model of self-organized clusters with phase transitions in ecological communities
Shing Yan Li, Mehran Kardar, Zhijie Feng +1
In complex ecological communities, species may self-organize into clusters or clumps where highly similar species can coexist. The emergence of such species clusters can be capture…
Directed Polymer Transfer Matrices as a Unified Generator of Distinct One-Point Fluctuation Laws
Sen Mu, Abbas Ali Saberi, Roderich Moessner +1
We numerically revisit the transfer-matrix formulation of directed polymers in random media and show that a common finite-dimensional framework organizes the canonical one-point fl…