3 papers
quant-ph2026
Spatial and particle-particle entanglement in 1D quantum walks of two distinguishable or indistinguishable bosonic particles
Christopher Mastandrea, Chih-Chun Chien
We present entanglement measures between spatially separated regions and between two distinguishable or indistinguishable particles in one-dimensional two-particle continuous-time…
quant-ph2025
Intermediate-temperature topological Uhlmann phase on IBM quantum computers
Christopher Mastandrea, Costin Iancu, Hao Guo +1
A spin-1 system can exhibit an intermediate-temperature topological regime with a quantized Uhlmann phase sandwiched by topologically trivial low- and high-temperature regimes. We…
quant-ph2024
Robustness and classical proxy of entanglement in variants of quantum walk
Christopher Mastandrea, Chih-Chun Chien
Quantum walk (QW) utilizes its internal quantum states to decide the displacement, thereby introducing single-particle entanglement between the internal and positional degrees of f…