43 citations · 132 across the 14 of their papers we have counts for
7 papers · 1 filter
KPZ Superdiffusion of Local Correlators in Diffusive Random Quantum Circuits
Ewan McCulloch
We study the single-particle Green's function in one-dimensional particle-number-conserving random unitary circuits coupled to an external…
Long-lived local quantum coherences from hydrodynamic large deviations
Ewan McCulloch, J. Alexander Jacoby, Sarang Gopalakrishnan
We develop a framework to describe how quantum coherences between distinct charge sectors evolve under generic charge-conserving dynamics. Our framework captures the nonperturbativ…
Subexponential decay of local correlations from diffusion-limited dephasing
Ewan McCulloch, J. Alexander Jacoby, Curt von Keyserlingk +1
Chaotic quantum systems at finite energy density are expected to act as their own heat baths, rapidly dephasing local quantum superpositions. We argue that in fact this dephasing i…
Quantum turnstiles for robust measurement of full counting statistics
Rhine Samajdar, Ewan McCulloch, Vedika Khemani +2
We present a scalable protocol for measuring full counting statistics (FCS) in experiments or tensor-network simulations. In this method, an ancilla in the middle of the system act…
Full Counting Statistics of Charge in Chaotic Many-body Quantum Systems
Ewan McCulloch, Jacopo De Nardis, Sarang Gopalakrishnan +1
We investigate the full counting statistics of charge transport in -symmetric random unitary circuits. We consider an initial mixed state prepared with a chemical potential i…
Operator Spreading in the Memory Matrix Formalism
Ewan McCulloch, C. W. von Keyserlingk
The spread and scrambling of quantum information is a topic of considerable current interest. Numerous studies suggest that quantum information evolves according to hydrodynamical…
Haar averaged moments of correlation functions and OTOCs in Floquet systems
Ewan McCulloch
Scrambling and thermalisation are topics of intense study in both condensed matter and high energy physics. Random unitary dynamics form a simple testing-ground for our theoretical…