Quadratic spin-phonon coupling and bipolarons in trapped ions
L. P. H. Gallagher, M. Mazzanti, Z. E. D. Ackerman, R. J. C. Spreeuw, A. Safavi-Naini, and R. Gerritsma
Phys. Rev. A 112, L020401 (2025) - Published 4 August, 2025
The authors use trapped ions to simulate the emergence of bipolarons, which are spin pairs coupled to lattice distortions, in an analogous mechanism to their formation in solids. By plotting the dynamics, they show that bipolarons are mobile across the lattice due to the zero-point energy of the system, and are thermally-pinned when the temperature is increased.
Quantum contextuality of spin-1 massive particles
M. Fabbrichesi, R. Floreanini, E. Gabrielli, and L. Marzola
Phys. Rev. A 112, L020402 (2025) - Published 20 August, 2025
The authors take a close look at how spin‑1 particles, like W bosons and certain mesons, behave in high-energy collisions and find clear signs of quantum contextuality in their polarizations. Using real collider data, they show that these uniquely quantum effects can be seen in practical experimental setups.
Optimized noise-resilient surface code teleportation interfaces
Mohamed A. Shalby, Renyu Wang, Denis Sedov, and Leonid P. Pryadko
Phys. Rev. A 112, L020403 (2025) - Published 22 August, 2025
The authors demonstrate reliable methods to connect quantum computing modules (“surface-code patches”) into larger systems, preserving error-correction despite significant interface noise.
