Engineering protected cavity-QED interactions through pulsed dynamical decoupling

2025/05/05 by I. Arrazola, Patrice Bertet, Arrazola, I. +5 · 4 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Optical Network Technologies #Quantum Physics (quant-ph) #Semiconductor Lasers and Optical Devices

paper · pdf · doi:10.48550/arxiv.2505.02929

openalex publication_date 2025/05/05 · openalex created_date 2025/10/16 · openalex updated_date 2026/07/28

Abstract

We study a generic cavity QED setup under conditions where the coupling between the two-level systems and a single bosonic mode is significantly degraded by low-frequency noise. To overcome this problem, we identify pulsed dynamical decoupling strategies that suppress the effects of noise while still allowing for a coherent exchange of excitations between the individual subsystems. The corresponding pulse sequences can be further designed to realize either Jaynes-Cummings, anti-Jaynes-Cummings, or Rabi couplings, as well as different types of cavity-mediated interactions between the two-level systems. A detailed analysis of the residual imperfections demonstrates that this decoupling strategy can boost the effective cooperativity of the cavity QED system by several orders of magnitude and improve the fidelity of quantum-technologically relevant operations accordingly.

Citations

• All-mechanical coherence protection and fast control of a spin qubit
• Toward high-fidelity quantum information processing and quantum simulation with spin qubits and phonons
• Robust Hamiltonian Engineering for Interacting Qudit Systems
• Ultrastrong coupling regimes of light-matter interaction
• Quantum sensing
• NMR Techniques for Quantum Control and Computation

Cited by

• Steady-state entanglement of spin qubits mediated by non-reciprocal and chiral magnons
• All-mechanical coherence protection and fast control of a spin qubit
• Quantum-impurity sensing of altermagnetic order
• Chiral magnons for spin-qubit state transfer

Related

• Cavity QED based on strongly localized modes: exponentially enhancing single-atom cooperativity
• Beating the Bad-Cavity Limit via Auxiliary-Emitter Linewidth Squeezing
• Jaynes-Cummings interaction between low energy free-electrons and cavity photons
• Suppression of quantum dissipation: A cooperative effect of quantum squeezing and quantum measurement
• Hybrid level anharmonicity and interference induced photon blockade in a two-qubit cavity QED system with dipole-dipole interaction