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arXiv:2605.29694

Tripartite Interactions Induced Strongly Correlated Quantum Emissions

Qian Bin, Ying Wu, Franco Nori, Xin-You Lü

quant-phSubmitted May 28, 2026• Announced May 29, 2026• 0 citations
arXivHTMLPDF

Abstract

Efficient generation of multiquanta emission is crucial for quantum information processing but remains challenging due to its typical reliance on higher-order quantum processes. Here, we theoretically demonstrate strongly correlated photon-phonon emission enabled by direct tripartite interaction. This interaction facilitates the formation of high-order multiquanta states without more intermediate state transitions, thereby avoiding the suppressed transition rates associated with multiple sequential processes and substantially improving resonant transitions. As a result, high-efficiency strongly correlated even-quanta emission (e.g., two photons and two phonons) can be achieved in the presences of dissipation. Beyond that, we show that introducing two-photon dissipation enables strongly correlated odd-quanta emission (e.g., two photons and one phonon) in the tripartite interaction system by parity-protected suppression of single-photon loss and reconstruction of higher-order multiquanta processes. Our work extends multiquanta emission into the tripartite coupling regime and holds promising potential for applications in hybrid quantum networks.

Comments
6 pages, 4 figures

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Efficient generation of multiquanta emission is crucial for quantum information processing but remains challenging due to its typical reliance on higher-order quantum processes. Here, we theoretically demonstrate strongly correlated photon-phonon emission enabled by direct tripartite interaction. This interaction facilitates the formation of high-order multiquanta states without more intermediate state transitions, thereby avoiding the suppressed transition rates associated with multiple sequential processes and substantially improving resonant transitions. As a result, high-efficiency strongly correlated even-quanta emission (e.g., two photons and two phonons) can be achieved in the presences of dissipation. Beyond that, we show that introducing two-photon dissipation enables strongly correlated odd-quanta emission (e.g., two photons and one phonon) in the tripartite interaction system by parity-protected suppression of single-photon loss and reconstruction of higher-order multiquanta processes. Our work extends multiquanta emission into the tripartite coupling regime and holds promising potential for applications in hybrid quantum networks.
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Multiquanta emission holds significant value for quantum computing and quantum information processing. In this study, we aim to enhance multiphoton bundle emission by introducing two-photon decay into cavity quantum electrodynamics systems. By implementing parity protection induced by two-photon decay in the quantum jump process, we achieve complete suppression of odd photon emissions, resulting in high-purity, high-efficiency 2 n -photon bundle emission characterized by photon bunching and bundle antibunching. Our results indicate that this scheme can effectively produce 2 n -photon sources. Unlike previous methods that enhanced 2 n -photon bundle purity via parity protection during unitary processes which required ultrastrong cavity-atom coupling, this study is the first to focus on parity protection during nonunitary processes to improve emission purity. This innovative approach not only relaxes the ultrastrong coupling condition compared to earlier schemes, but it also opens new research directions for enhancing N -photon bundle emission. Furthermore, this work has the potential to advance the fields of multiphoton physics and parity theory.
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Abstract We present a theoretical formulation of a tripartite hybrid quantum circuit composed of a resonator, a transmon qubit, and a nanoelectromechanical oscillator coupled via effective nonlinear interactions. Starting from the full Hamiltonian, we derive an effective model that captures the essential features of the tripartite coupling, including coherent driving and dissipative mechanisms. By solving the steady-state regime of the system’s quantum dynamics, we compute the reflection and transmission spectra using input-output theory. Our results reveal clear signatures of energy-level quantization in the single-excitation limit, demonstrating the formation of pairwise-dressed states emerging from the tripartite interaction. This work provides a theoretical framework for probing hybrid quantum systems in the few-quanta regime and highlights their potential for quantum information and sensing applications.
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