2017/09/13 by Manas Kulkarni, Sven M. Hein, Eliot Kapit +1
Computer Science · Physics and Astronomy · #Computer science #Current (fluid) #Dissipation #Dissipative system #Non-equilibrium thermodynamics #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum many-body systems #Quantum mechanics #Qubit #Scalability #Spin (aerodynamics) #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physrevb.97.064506
published as Phys. Rev. B 97, 064506 (2018) · 4 pages, 3 figures
arxiv created 2017/09/13 · openalex publication_date 2018/02/12 · arxiv updated 2018/02/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In a recent experiment [P. Roushan et al., Nat. Phys. 13, 146 (2017)], a spin current in an architecture of three superconducting qubits was produced during a few microseconds by creating synthetic magnetic fields. The lifetime of the current was set by the typical dissipative mechanisms that occur in those systems. We propose a scheme for the generation of permanent currents, even in the presence of such imperfections, and scalable to larger system sizes. It relies on striking a subtle balance between multiple nonequilibrium drives and the dissipation mechanisms, in order to engineer and stimulate chiral excited states which can carry current.