Dissipative Transmons in Superconducting Circuits

Home

Discover

Bookmarks

Keep Up With Top Trending Papers In CS / AI / ML ...

Source arXiv

Quantum Physics

Mesoscale and Nanoscale Physics

Strongly Correlated Electrons

Dissipative Transmons in Superconducting Circuits

Absence of spin-boson quantum phase transition for transmon qubits

Superconducting circuits are often idealized as two-level qubits, drawing powerful analogies to quantum spin models.

Here we put here into evidence a failure of the two-level paradigm for realistic superconducting devices, due to electrostatic constraints which limit the maximum strength of dissipation.

These prevent the spin-boson quantum phase transition for transmons, even up to relatively large nonlinearities.

A different picture for the many-body groundstate describing strongly dissipative transmons is proposed, showing unusual zero point fluctuations.

Authors

Kuljeet Kaur, Théo Sépulcre, Nicolas Roch, Izak Snyman, Serge Florens, Soumya Bera

◐ Recommended Members

◐ Latest Activity