Related papers: Quantum theory of the Josephson junction between finite islands

Quantum theory of the Josephson junction between finite islands

URL: http://arxiv.org/abs/2504.13779v2
Date: Thu, 01 May 2025 16:06:53 GMT
Title: Quantum theory of the Josephson junction between finite islands
Authors: Thomas J. Maldonado, Alejandro W. Rodriguez, Hakan E. Türeci,
Abstract summary: We derive a quantized Hamiltonian for a Josephson junction between finite-sized islands.<n>We predict measurable corrections to the qubit frequency and charge susceptibility to test the theory.
Score: 44.99833362998488
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Superconducting circuits comprising Josephson junctions have spurred significant research activity due to their promise to realize scalable quantum computers. Effective Hamiltonians for these systems have traditionally been derived assuming the junction connects superconducting islands of infinite size. We derive a quantized Hamiltonian for a Josephson junction between finite-sized islands and predict measurable corrections to the qubit frequency and charge susceptibility to test the theory.

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