6 papers
The EEC-Hedron: Positivity Bounds on Energy Correlators
Bianka Meçaj, Ian Moult, Hidde Stoffels +2
We study the constraints placed by energy positivity on general unitary quantum field theories. We show that the coefficients in the partial wave expansion of energy-energy correla…
Bootstrapping Open Quantum Many-body Systems with Absorbing Phase Transitions
Minjae Cho, Colin Oscar Nancarrow, Petar TadiÄ +1
We demonstrate that combining the positivity of density matrices with steady-state conditions yields a systematic bootstrap method for studying open quantum many-body systems gover…
Energy Correlator Conformal Blocks and Positivity
Bianka Meçaj, Ian Moult, Matthew T. Walters +1
Correlation functions of energy flow operators (energy-energy correlators) are one of the simplest observables in quantum field theory and gravity, with diverse applications rangin…
Yang-Lee Quantum Criticality in Various Dimensions
Erick Arguello Cruz, Igor R. Klebanov, Grigory Tarnopolsky +1
The Yang-Lee universality class arises when imaginary magnetic field is tuned to its critical value in the paramagnetic phase of the Ising model. In , this non-unitary C…
Coarse-grained Bootstrap of Quantum Many-body Systems
Minjae Cho, Colin Oscar Nancarrow, Petar TadiÄ +2
We present a new computational framework combining coarse-graining techniques with bootstrap methods to study quantum many-body systems. The method efficiently computes rigorous up…
Precision study of the massive Schwinger model near quantum criticality
Erick Arguello Cruz, Grigory Tarnopolsky, Yuan Xin
We perform a numerical analysis of the massive Schwinger model in the presence of a background electric field. Using the Density Matrix Renormalization Group (DMRG) approach, we ef…