Toward Large Nonradiating Qubits: When Quantum Engineering Meets Photonics
Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.Nonradiating superconducting qubits suppress radiative losses through photonic‐inspired mechanisms such as anapole states and bound states in the continuum (BICs). This review surveys theoretical foundations and recent implementations of large, wavelength‐scale qubits that confine electromagnetic energy while maintaining coherence.
Alexey Basharin
wiley +1 more source
Cooperative Decay of an Ensemble of Atoms in a One-Dimensional Chain with a Single Excitation
AtomsWe propose a new expression of the cooperative decay rate of a one-dimensional chain of N two-level atoms in the single-excitation configuration. From it, the interference nature of superradiance and subradiance arises naturally, without the need to ...
Nicola Piovella
doaj +1 more source
Cooperative states and shift in resonant scattering of an atomic ensemble
New Journal of PhysicsWe investigate the spectral shift known as the collective Lamb shift in forward scattering for a cold dense atomic cloud. The shift results from resonant dipole–dipole interaction mediated by real and virtual photon exchange, forming many-body states ...
Ting Hsu, Kuan-Ting Lin, Guin-Dar Lin
doaj +1 more source
Dynamic control of super- and subradiance of quantum emitters via near-field photonics and time-varying media [PDF]
APL QuantumAchieving dynamic and broadband control of superradiance and subradiance at elevated temperatures is central to quantum photonic technologies. Herein, we theoretically investigate near-field photonics combined with adiabatic and non-adiabatic time ...
Frank D. Bello +4 more
doaj +1 more source
Subradiant Decay in 2D and 3D Atomic Arrays
PhotonicsSubradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, ordered subwavelength arrays of emitters have emerged as promising platforms
Nicola Piovella, Romain Bachelard
doaj +1 more source
Multimode cold-damping optomechanics with delayed feedback
Physical Review Research, 2020 We investigate the role of time delay in cold-damping optomechanics with multiple mechanical resonances. For instantaneous electronic response, it was recently shown by C. Sommer and C. Genes [Phys. Rev. Lett.
Christian Sommer +2 more
doaj +1 more source
Quantum Simulation of Dissipative Collective Effects on Noisy Quantum Computers
PRX Quantum, 2023 Dissipative collective effects are ubiquitous in quantum physics and their relevance ranges from the study of entanglement in biological systems to noise mitigation in quantum computers.
Marco Cattaneo +4 more
doaj +1 more source
Superradiant to subradiant phase transition in the open system Dicke model: dark state cascades
New Journal of Physics, 2018 Collectivity in ensembles of atoms gives rise to effects like super- and subradiance. While superradiance is well studied and experimentally accessible, subradiance remains elusive since it is difficult to track experimentally as well as theoretically ...
Michael Gegg +3 more
doaj +1 more source
Third-order nonlinearity with subradiance dark-state in ultra-strong excitons and surface plasmon coupling using self-antiaggregation organic dye [PDF]
, 2023 A strong coupling regime with dressed states is formed when a propagating surface plasmon (PSP) mode coherently exchanges energy with an ensemble of excitons at a rate faster than the system's losses.
TH Tee, Clarence Augustine +7 more
core +1 more source
Cooperative Decay of N Atoms in a Ring Configuration
AtomsWe provide an analytic expression of the spectrum of the cooperative decay rate of N two-level atoms regularly distributed on a ring in the single-excitation configuration.
Nicola Piovella
doaj +1 more source