Using Bifluxon tunneling to protect the fluxonium qubit
Encoding quantum information in quantum states with disjoint wave-function support and
noise-insensitive energies is the key behind the idea of qubit protection. While fully …
noise-insensitive energies is the key behind the idea of qubit protection. While fully …
Quantum circuits with multiterminal Josephson-Andreev junctions
We explore superconducting quantum circuits where several leads are simultaneously
connected beyond the tunneling regime, such that the fermionic structure of Andreev bound …
connected beyond the tunneling regime, such that the fermionic structure of Andreev bound …
Josephson tunnel junction arrays and Andreev weak links: linked by a single energy-phase relation
AM Bozkurt, V Fatemi - arXiv preprint arXiv:2408.06462, 2024 - arxiv.org
Josephson elements are cornerstones of cryogenic classical and quantum superconducting
technology, owing to their nonlinearity. Two important types of Josephson elements are …
technology, owing to their nonlinearity. Two important types of Josephson elements are …
Kramers-protected hardware-efficient error correction with Andreev spin qubits
We propose an architecture for bit flip error correction of Andreev spins that is protected by
Kramers' degeneracy. Specifically, we show that a coupling network of linear inductors …
Kramers' degeneracy. Specifically, we show that a coupling network of linear inductors …
Numerical evaluation of the real-time photon-instanton cross-section in a superconducting circuit
A Burshtein, D Shuliutsky, R Kuzmin… - arXiv preprint arXiv …, 2024 - arxiv.org
Instantons, semi-classical trajectories of quantum tunneling in imaginary time, have long
been used to study thermodynamic and transport properties in a myriad of condensed matter …
been used to study thermodynamic and transport properties in a myriad of condensed matter …