Fluxon-based quantum simulation in circuit QED | |
Article | |
关键词: SUPERCONDUCTING CIRCUITS; PHASE-SLIP; ELECTRODYNAMICS; POLYACETYLENE; EXCITATIONS; TRANSITIONS; NETWORKS; DYNAMICS; SOLITONS; SYSTEMS; | |
DOI : 10.1103/PhysRevB.98.174505 | |
来源: SCIE |
【 摘 要 】
Long-lived fluxon excitations can be trapped inside a superinductor ring, which is divided into an array of loops by a periodic sequence of Josephson junctions in the quantum regime, thereby allowing fluxons to tunnel between neighboring sites. By tuning the Josephson couplings and, implicitly, the fluxon tunneling probability amplitudes, a wide class of one-dimensional tight-binding lattice models may be implemented and populated with a stable number of fluxons. We illustrate the use of this quantum simulation platform by discussing the Su-Schrieffer-Heeger model in the one-fluxon subspace, which hosts a symmetry-protected topological phase with fractionally charged bound states at the edges. This pair of localized edge states could be used to implement a superconducting qubit increasingly decoupled from decoherence mechanisms.
【 授权许可】
Free