48 citations · 124 across the 6 of their papers we have counts for
6 papers
Dress code for infrared safe scattering in QED
Hayato Hirai, Sotaro Sugishita
We study the -matrix and inclusive cross-section for general dressed states in quantum electrodynamics. We obtain an infrared factorization formula of the -matrix elements fo…
IR finite S-matrix by gauge invariant dressed states
Hayato Hirai, Sotaro Sugishita
Dressed states were proposed to define the infrared (IR) finite -matrix in QED or gravity. We show that the original Kulish-Faddeev dressed states are not enough to cure the IR…
Shrinking of Operators in Quantum Error Correction and AdS/CFT
Hayato Hirai
We first show that a class of operators acting on a given bipartite pure state on can shrink its supports on $\mathcal{H}_{A}\otimes\mathcal…
Dressed states from gauge invariance
Hayato Hirai, Sotaro Sugishita
The dressed state formalism enables us to define the infrared finite -matrix for QED. In the formalism, asymptotic charged states are dressed by clouds of photons. The dressed a…
Conservation Laws from Asymptotic Symmetry and Subleading Charges in QED
Hayato Hirai, Sotaro Sugishita
We present several results on memory effects, asymptotic symmetry and soft theorems in massive QED. We first clarify in what sense the memory effects are interpreted as the charge…
Towards Entanglement of Purification for Conformal Field Theories
Hayato Hirai, Kotaro Tamaoka, Tsuyoshi Yokoya
We argue that the entanglement of purification for two dimensional holographic CFT can be obtained from conformal blocks with internal twist operators. First, we explain our formul…