67 citations · 197 across the 15 of their papers we have counts for
15 papers
Truth, or Mere Beauty?
Djordje Radicevic
High energy physics features many ingenious tools for extracting finite results from formally divergent expressions. This brief note argues from a new perspective that all such for…
Entanglement Entropy across the Lattice-Continuum Correspondence
Djordje Radicevic
This paper revisits standard calculations of free field entanglement entropy in light of the newly developed lattice-continuum correspondence. This correspondence prescribes an exp…
Confinement and Flux Attachment
Djordje Radicevic
Flux-attached theories are a novel class of lattice gauge theories whose gauge constraints involve both electric and magnetic operators. Like ordinary gauge theories, they possess…
The Ultraviolet Structure of Quantum Field Theories. Part 3: Gauge Theories
Djordje Radicevic
This paper develops a detailed lattice-continuum correspondence for all common examples of Abelian gauge theories, with and without matter. These rules for extracting a continuum t…
The Ultraviolet Structure of Quantum Field Theories. Part 2: What is Quantum Field Theory?
Djordje Radicevic
This paper proposes a general framework for nonperturbatively defining continuum quantum field theories. Unlike most such frameworks, the one offered here is finitary: continuum th…
The Ultraviolet Structure of Quantum Field Theories. Part 1: Quantum Mechanics
Djordje Radicevic
This paper fires the opening salvo in the systematic construction of the lattice-continuum correspondence, a precise dictionary that describes the emergence of continuum quantum th…
Abelian Bosonization, OPEs, and the "String Scale" of Fermion Fields
Djordje Radicevic
This paper establishes a precise mapping between lattice and continuum operators in theories of (1 + 1)D fermions. To reach the continuum regime of a lattice theory, renormalizatio…
The Lattice-Continuum Correspondence in the Ising Model
Djordje Radicevic
Starting from the operator algebra of the (1+1)D Ising model on a spatial lattice, this paper explicitly constructs a subalgebra of smooth operators that are natural candidates for…
Systematic Constructions of Fracton Theories
Djordje Radicevic
Fracton theories possess exponentially degenerate ground states, excitations with restricted mobility, and nontopological higher-form symmetries. This paper shows that such theorie…
Chiral and Geometric Anomalies in Finite Systems
Djordje Radicevic
Dirac fermions coupled to gauge fields can exhibit the chiral anomaly even on a finite spatial lattice. A careful description of this phenomenon yields new insights into the nature…
Comments on Defining Entanglement Entropy
Jennifer Lin, Djordje Radicevic
We revisit the issue of defining the entropy of a spatial region in a broad class of quantum theories. In theories with explicit regularizations, working within an elementary but g…
Spin Structures and Exact Dualities in Low Dimensions
Djordje Radicevic
This paper derives a large web of exact lattice dualities in one and two spatial dimensions. Some of the dualities are well-known, while others, such as two-dimensional boson-paraf…
Quantum Mechanics in the Infrared
Djordje Radicevic
This paper presents an algebraic formulation of the renormalization group flow in quantum mechanics on flat target spaces. For any interacting quantum mechanical theory, the fixed…
Disorder Operators in Chern-Simons-Fermion Theories
Djordje Radicevic
Building on the recent progress in solving Chern-Simons-matter theories in the planar limit, we compute the scaling dimensions of a large class of disorder ("monopole") operators i…
Notes on Entanglement in Abelian Gauge Theories
Djordje Radicevic
We streamline and generalize the recent progress in understanding entanglement between spatial regions in Abelian gauge theories. We provide an unambiguous and explicit prescriptio…