8 papers
Renormalization of Galilean Electrodynamics
Shira Chapman, Lorenzo Di Pietro, Kevin T. Grosvenor +1
We study the quantum properties of a Galilean-invariant abelian gauge theory coupled to a Schrödinger scalar in 2+1 dimensions. At the classical level, the theory with minimal coup…
Energy Reflection and Transmission at 2D Holographic Interfaces
Constantin Bachas, Shira Chapman, Dongsheng Ge +1
Scattering from conformal interfaces in two dimensions is universal in that the flux of reflected and transmitted energy does not depend on the details of the initial state. In thi…
Charged Complexity and the Thermofield Double State
Shira Chapman, Hong Zhe Chen
We establish a systematic framework for studying quantum computational complexity of Gaussian states of charged systems based on Nielsen's geometric approach. We use this framework…
Complexity of Mixed States in QFT and Holography
Elena Caceres, Shira Chapman, Josiah D. Couch +3
We study the complexity of Gaussian mixed states in a free scalar field theory using the 'purification complexity'. The latter is defined as the lowest value of the circuit complex…
Holographic Complexity for Defects Distinguishes Action from Volume
Shira Chapman, Dongsheng Ge, Giuseppe Policastro
We explore the two holographic complexity proposals for the case of a 2d boundary CFT with a conformal defect. We focus on a Randall-Sundrum type model of a thin AdS brane embe…
Complexity and entanglement for thermofield double states
Shira Chapman, Jens Eisert, Lucas Hackl +4
Motivated by holographic complexity proposals as novel probes of black hole spacetimes, we explore circuit complexity for thermofield double (TFD) states in free scalar quantum fie…