Coherent control of a multi-qubit dark state in waveguide quantum electrodynamics

M Zanner, T Orell, CMF Schneider, R Albert… - Nature Physics, 2022 - nature.com
Superconducting qubits in a waveguide have long-range interactions mediated by photons
that cause the emergence of collective states. Destructive interference between the qubits …

Many-body superradiance and dynamical mirror symmetry breaking in waveguide QED

S Cardenas-Lopez, SJ Masson, Z Zager… - Physical Review Letters, 2023 - APS
The many-body decay of extended collections of two-level systems remains an open
problem. Here, we investigate whether an array of emitters coupled to a one-dimensional …

Control of localized single-and many-body dark states in waveguide qed

R Holzinger, R Gutierrez-Jauregui, T Hönigl-Decrinis… - Physical Review Letters, 2022 - APS
Subradiant states in a finite chain of two-level quantum emitters coupled to a one-
dimensional reservoir are a resource for superior photon storage and their controlled …

Dicke superradiance requires interactions beyond nearest neighbors

WK Mok, A Asenjo-Garcia, TC Sum, LC Kwek - Physical Review Letters, 2023 - APS
Photon-mediated interactions within an excited ensemble of emitters can result in Dicke
superradiance, where the emission rate is greatly enhanced, manifesting as a high-intensity …

Beyond hard-core bosons in transmon arrays

O Mansikkamäki, S Laine, A Piltonen, M Silveri - PRX Quantum, 2022 - APS
Arrays of transmons have proven to be a viable medium for quantum information science
and quantum simulations. Despite their widespread popularity as qubit arrays, there remains …

Dissipative stabilization of dark quantum dimers via squeezed vacuum

R Gutiérrez-Jáuregui, A Asenjo-Garcia… - Physical Review …, 2023 - APS
Understanding the mechanism through which an open quantum system exchanges
information with an environment is central to the creation and stabilization of quantum states …

Non-Hermitian topological quantum states in a reservoir-engineered transmon chain

W Brzezicki, M Silveri, M Płodzień, F Massel, T Hyart - Physical Review B, 2023 - APS
Dissipation in open systems enriches the possible symmetries of the Hamiltonians beyond
the Hermitian framework, allowing the possibility of novel non-Hermitian topological phases …

Driven anti-Bragg subradiant correlations in waveguide quantum electrodynamics

AN Poddubny - Physical Review A, 2022 - APS
We study theoretically driven quantum dynamics in periodic arrays of two-level qubits
coupled to the waveguide. We demonstrate that strongly subradiant eigenstates of the …

Dissipation and dephasing of interacting photons in transmon arrays

O Busel, S Laine, O Mansikkamäki, M Silveri - Physical Review Research, 2023 - APS
Transmon arrays are one of the most promising platforms for quantum information science.
Despite being often considered simply as qubits, transmons are inherently quantum …

Level splitting induced by collective interaction in a waveguide QED system

D Bao, Z Lin - Physical Review Research, 2024 - APS
In waveguide quantum electrodynamics (QED) systems, noninteracting quantum entities can
be coupled through the vacuum field of the waveguide, leading to both coherent and …