89 citations · 662 across the 25 of their papers we have counts for
28 papers
Half-Completeness from Standard Gravitational Dispersion Relations
Lukas W. Lindwasser, Laurentiu Rodina, Justinas Rumbutis
The completeness hypothesis states that quantum gravity realizes every representation allowed by its gauge group. Previous S-matrix arguments used the graviton pole to constrain ex…
The Real EFThedron: A Moment Geometry for the Nonperturbative S-Matrix
Laurentiu Rodina, Anna Tokareva, Yongjun Xu
The S-matrix bootstrap restricts low-energy interactions through unitarity, analyticity and crossing symmetry. For effective field theory couplings, positivity bounds have a natura…
From Hidden Zeros to Exact Splittings and New Zeros
Yang Li, Laurentiu Rodina
Hidden zeros impose constraints on scattering amplitudes beyond their familiar factorization properties. We explore their structure in two related directions. We first promote hidd…
A Combinatorial Origin of Locality
Laurentiu Rodina, Giuseppe Sellaroli, Yan Ni
Locality and unitarity are fundamental principles of quantum field theory. For tree-level scattering amplitudes, locality determines which propagator poles may occur together, whil…
Sampling the Graviton Pole and Deprojecting the Swampland
Guangzhuo Peng, Laurentiu Rodina, Anna Tokareva +1
We develop a primal bootstrap framework for effective field theories in the presence of a graviton pole, based on finite-resolution sampling rather than smearing, while also allowi…
Cosmological Wavefunctions as Amplitudes: Dual Shuffle Factorization and Uniqueness from New Hidden Zeros
Yang Li, Laurentiu Rodina
We show that cosmological wavefunctions in theories naturally generalize flat-space scattering amplitudes: via a simple map from tube variables to Mandelst…
Emergence of Unitarity and Locality from Hidden Zeros at One-Loop Order
Jeffrey V. Backus, Laurentiu Rodina
Recent investigations into the geometric structure of scattering amplitudes have revealed the surprising existence of "hidden zeros": secret kinematic loci where tree-level amplitu…
Spectral Constraints on Theories of Colored Particles and Gravity
Aaron Hillman, Yu-tin Huang, Laurentiu Rodina +1
In this letter, we consider effective field theories for light fields transforming under the fundamental or adjoint representation of a continuous group. We demonstrate that in the…
Hidden zeros are equivalent to enhanced ultraviolet scaling and lead to unique amplitudes in Tr() theory
Laurentiu Rodina
We investigate the hidden amplitude zeros discovered by Arkani-Hamed et al., which describe a non-trivial vanishing of scattering amplitudes on special external kinematics. We firs…
Kinematic Hopf algebra and BCJ numerators at finite
Gang Chen, Laurentiu Rodina, Congkao Wen
In this letter, starting from a kinematic Hopf algebra, we first construct a closed-form formula for all Bern-Carrasco-Johansson (BCJ) numerators in Yang-Mills (YM) theory with inf…
Kinematic Hopf algebra for amplitudes from higher-derivative operators
Gang Chen, Laurentiu Rodina, Congkao Wen
Recently it has been shown that Bern-Carrasco-Johansson (BCJ) numerators of colour-kinematic duality for tree-level scattering amplitudes in Yang-Mills theory (coupled with scalars…
The Geometry of the Modular Bootstrap
Li-Yuan Chiang, Tzu-Chen Huang, Yu-tin Huang +3
We explore the geometry behind the modular bootstrap and its image in the space of Taylor coefficients of the torus partition function. In the first part, we identify the geometry…
De-projecting the EFThedron
Li-Yuan Chiang, Yu-tin Huang, Laurentiu Rodina +1
The space of Wilson coefficients of EFT that can be UV completed into consistent theories was recently shown to be described analytically by a positive geometry, termed the EFThedr…
(Non)-projective bounds on gravitational EFT
Li-Yuan Chiang, Yu-tin Huang, Wei Li +2
In this paper we study both projective and non-projective constraints on four-dimensional gravitational effective fields theories implied from unitarity, causality and crossing, as…
Into the EFThedron and UV constraints from IR consistency
Li-Yuan Chiang, Yu-tin Huang, Wei Li +2
Recently it was proposed that the theory space of effective field theories with consistent UV completions can be described as a positive geometry, termed the EFThedron. In this pap…
Composing Effective Prediction at Five Points
John Joseph M. Carrasco, Laurentiu Rodina, Suna Zekioglu
Color-kinematics duality in the adjoint has proven key to the relationship between gauge and gravity theory scattering amplitude predictions. In recent work, we demonstrated that a…
Exploring the Landscape for Soft Theorems of Nonlinear Sigma Models
Laurentiu Rodina, Zhewei Yin
We generalize soft theorems of the nonlinear sigma model beyond the amplitudes and the coset of . We first…
Double Copy in Higher Derivative Operators of Nambu-Goldstone Bosons
Ian Low, Laurentiu Rodina, Zhewei Yin
We investigate the existence of double copy structure, or the lack thereof, in higher derivative operators for Nambu-Goldstone bosons. At the leading , tree amplitud…
Carving out the Space of Open-String S-matrix
Yu-tin Huang, Jin-Yu Liu, Laurentiu Rodina +1
In this paper, we explore the open string amplitude's dual role as a space-time S-matrix and a 1D CFT correlation function. We pursue this correspondence in two directions. First,…
UV consistency conditions for CHY integrands
Laurentiu Rodina
We extend on-shell bootstrap methods from spacetime amplitudes to the worldsheet objects of the CHY formalism. We find that the integrands corresponding to tree-level non-linear si…
Simple encoding of higher derivative gauge and gravity counterterms
John Joseph M. Carrasco, Laurentiu Rodina, Zanpeng Yin +1
Invoking increasingly higher dimension operators to encode novel UV physics in effective gauge and gravity theories traditionally means working with increasingly more finicky and d…
UV considerations on scattering amplitudes in a web of theories
John Joseph M. Carrasco, Laurentiu Rodina
The scattering predictions of a web of theories including Yang-Mills (YM), gravity, bi-adjoint scalar, the non-linear sigma model (NLSM), Dirac-Born-Infeld-Volkov-Akulov (DBI-VA) a…
Scattering Amplitudes from Soft Theorems and Infrared Behavior
Laurentiu Rodina
We prove that soft theorems uniquely fix scattering amplitudes in a wide range of theories, including Yang-Mills, gravity, the non-linear sigma model, Dirac-Born-Infeld, dilaton ef…
Locality and Unitarity from Singularities and Gauge Invariance
Nima Arkani-Hamed, Laurentiu Rodina, Jaroslav Trnka
We conjecture that the leading two-derivative tree-level amplitudes for gluons and gravitons can be derived from gauge invariance together with mild assumptions on their singularit…