2021/06/30 by Miguel Bello, Gloria Platero, Alejandro González-Tudela
Engineering · Physics and Astronomy · Psychology · #Adiabatic process #Attribution #Electrical engineering #Engineering #Observable #Physics #Physics of Superconductivity and Magnetism #Psychology #Quantum #Quantum and electron transport phenomena #Quantum decoherence #Quantum many-body systems #Quantum mechanics #Spin (aerodynamics) #Theoretical physics #Topology (electrical circuits) #cond-mat.other #quant-ph
paper · pdf · doi:10.1103/prxquantum.3.010336
published as PRX Quantum 3, 010336 (2022)
arxiv created 2021/10/15 · openalex publication_date 2022/03/07 · arxiv updated 2022/03/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Quantum spin models find applications in many different areas, such as spintronics, high-Tc superconductivity, and even complex optimization problems. However, studying their many-body behaviour, especially in the presence of frustration, represents an outstanding computational challenge. To overcome it, quantum simulators based on cold, trapped atoms and ions have been built, shedding light already on many non-trivial phenomena. Unfortunately, the models covered by these simulators are limited by the type of interactions that appear naturally in these systems. Waveguide QED setups have recently been pointed out as a powerful alternative due to the possibility of mediating more versatile spin-spin interactions with tunable sign, range, and even chirality. Yet, despite their potential, the many-body phases emerging from these systems have only been scarcely explored. In this manuscript, we fill this gap analyzing the ground states of a general class of spin models that can be obtained in such waveguide QED setups. Importantly, we find novel many-body phases different from the ones obtained in other platforms, e.g., symmetry-protected topological phases with large-period magnetic orderings, and explain the measurements needed to probe them.