Complex decoherence-free interactions between giant atoms

Abstract

Giant atoms provide a promising platform for engineering decoherence-free interactions which is a major task in modern quantum technologies. Here we study systematically how to implement complex decoherence-free interactions among giant atoms resorting to periodic coupling modulations and suitable arrangements of coupling points. We demonstrate that the phase of the modulation, which is tunable in experiments, can be encoded into the decoherence-free interactions, and thus enables phase-dependent dynamics when the giant atoms constitute an effective closed loop. Moreover, we consider the influence of non-Markovian retardation effect arising from large separations of the coupling points and study its dependence on the modulation parameters.

12 pages, 5 figures

References in corpus (7)

• Effective Hamiltonian Theory and Its Applications in Quantum Information
• Theory of single-photon transport in a single-mode waveguide coupled to a cavity containing a two-level atom
• Designing frequency-dependent relaxation rates and Lamb shift for a giant artificial atom
• Photonic simulation of giant atom decay
• Coherent single-photon scattering spectra for a giant-atom waveguide-QED system beyond dipole approximation
• Manipulating single-photon transport in a waveguide-QED structure containing two giant atoms
• Introduction to quantum non-reciprocal interactions: from non-Hermitian Hamiltonians to quantum master equations and quantum feedforward schemes

Cited by in corpus (19)

• Non-Markovian dynamics with a giant atom coupled to a semi-infinite photonic waveguide
• Single photon scattering from a chain of giant atoms coupled to a one-dimensional waveguide
• Catch and release of propagating bosonic field with non-Markovian giant atom
• Avoiding decoherence with giant atoms in a two-dimensional structured environment
• Giant Emitters in a Structured Bath with Non-Hermitian Skin Effect
• Single-photon scattering in giant-atom waveguide systems with chiral coupling
• Atom-photon dressed states in a waveguide-QED system with multiple giant atoms
• Non-Markovian dynamics with a driven three-level giant atom in a semi-infinite photonic waveguide
• Circuit QED with a Giant Atom Coupling to Left-handed Superlattice Metamaterials
• Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer
• Simulating and probing many-body quantum states in waveguide-QED systems with giant atoms
• Harnessing spontaneous emission of correlated photon pairs from ladder-type giant atoms
• Giant atom with disorders: Effects from imperfect couplings
• Chiral excitation flows of a multinode network based on synthetic gauge fields
• Giant atoms coupled to waveguide: Continuous coupling and multiple excitations
• Non-Markovian exceptional points in waveguide quantum electrodynamics
• Oscillating bound states in waveguide-QED system with two giant atoms
• Exotic collective behaviors of giant quantum emitters in two-dimensional baths
• Amplifying Decoherence-Free Many-Body Interactions with Giant Atoms Coupled to Parametric Waveguide