2 papers
quant-ph2025
Comparing quantum complexity and quantum fidelity
Nadir Samos Sáenz de Buruaga
Quantum complexity measures the difficulty of obtaining a given state starting from a typically unentangled state. In this work, we show that complexity, when defined through the m…
cond-mat.str-el2021
Entanglement in non-critical inhomogeneous quantum chains
Nadir Samos Sáenz de Buruaga, Silvia N. Santalla, Javier Rodríguez-Laguna +1
We study an inhomogeneous critical Ising chain in a transverse field whose couplings decay exponentially from the center. In the strong inhomogeneity limit we apply Fisher's renorm…