activity
20242026
collaborators

7 papers

quant-ph2026

Holographic quantum codes with trapped ions

Alex Steiner, Gerard Anglès Munné, Robert Freund +9

Holography is a central concept at the intersection of gravity, condensed matter theory, and quantum information, linking the interior bulk of a system to its boundary. A model rea…

cond-mat.supr-con2026

Higgs gap modes in superconducting circuit quantisation

Yun-Chih Liao, Ben J. Powell, Thomas M. Stace

We extend a recently developed projective circuit quantisation approach to incorporate superconducting Higgs modes associated to gap dynamics. This approach starts from a microscop…

quant-ph2026

Electronically-controlled one- and two-qubit gates for transmon quasicharge qubits

Nicholas M. Christopher, Deniz E. Stiegemann, Abhijeet Alase +1

Superconducting protected qubits aim to achieve sufficiently low error rates so as to allow realization of error-corrected, utility-scale quantum computers. A recent proposal encod…

quant-ph2025

Microwave Circulation in an Extended Josephson Junction Ring

Dat Thanh Le, Arkady Fedorov, Thomas M. Stace

Circulators are nonreciprocal devices that enable directional signal routing. Nonreciprocity, which requires time-reversal symmetry breaking, can be produced in waveguides in which…

quant-ph2025

The superconducting grid-states qubit

Long B. Nguyen, Hyunseong Kim, Dat T. Le +9

Decoherence errors arising from noisy environments remain a central obstacle to progress in quantum computation and information processing. Quantum error correction (QEC) based on…

quant-ph2025

Circuit Quantisation from First Principles

Yun-Chih Liao, Ben J. Powell, Thomas M. Stace

Superconducting circuit quantisation conventionally starts from classical Euler-Lagrange circuit equations-of-motion. Invoking the correspondence principle yields a canonically qua…