activity
20082026
most citedOperator Spreading in Random Unitary Circuits

734 citations · 5.4k across the 40 of their papers we have counts for

collaborators

40 papers

cond-mat.stat-mech2026

The damage spreading transition: a hierarchy of renormalization group fixed points

Adam Nahum, Sthitadhi Roy

Deterministic classical cellular automata can be in two phases, depending on how irreversible the dynamical rules are. In the strongly irreversible phase, trajectories with differe…

cond-mat.stat-mech2026

Continuum mechanics of entanglement in noisy interacting fermion chains

Tobias Swann, Adam Nahum

We develop an effective continuum description for information scrambling in a chain of randomly interacting Majorana fermions. The approach is based on the semiclassical treatment…

cond-mat.stat-mech2025

Continuous symmetry breaking in 1D spin chains and 1+1D field theory

Adam Nahum

We argue that ground states of 1D spin chains can spontaneously break U(1) ``easy-plane'' spin rotation symmetry, via true long-range order of , at the phase transition…

cond-mat.stat-mech2023★ 17 cited

Renormalization group for measurement and entanglement phase transitions

Adam Nahum, Kay Joerg Wiese

We analyze the renormalization-group (RG) flows of two effective Lagrangians, one for measurement induced transitions of monitored quantum systems and one for entanglement transiti…

cond-mat.stat-mech2023★ 9 cited

Spacetime picture for entanglement generation in noisy fermion chains

Tobias Swann, Denis Bernard, Adam Nahum

Studies of random unitary circuits have shown that the calculation of Renyi entropies of entanglement can be mapped to classical statistical mechanics problems in spacetime. In thi…

cond-mat.stat-mech2023★ 79 cited

Nonlinear sigma models for monitored dynamics of free fermions

Michele Fava, Lorenzo Piroli, Tobias Swann +2

We derive field theory descriptions for measurement-induced phase transitions in free fermion systems. We focus on a multi-flavor Majorana chain, undergoing Hamiltonian evolution w…