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quant-ph2026
Entanglement corner dependence in two-dimensional systems: A tensor network perspective
Noa Feldman, Moshe Goldstein
In continuous quantum field theories, the entanglement entropy of a subsystem with sharp corners on its boundary exhibits a universal corner-dependent contribution. We study this c…
quant-ph2026
High-threshold decoding of non-Pauli codes for 2D universality
Julio C. Magdalena de la Fuente, Noa Feldman, Jens Eisert +1
Topological codes have many desirable properties that allow fault-tolerant quantum computation with relatively low overhead. A core challenge for these codes, however, is to achiev…
quant-ph2026
Efficient Calculation of the Maximal Rényi Divergence for a Matrix Product State via Generalized Eigenvalue Density Matrix Renormalization Group
Uri Levin, Noa Feldman, Moshe Goldstein
The study of quantum and classical correlations between subsystems is fundamental to understanding many-body physics. In quantum information theory, the quantum mutual information,…