Jung-Tsung Shen

Jun 14, 2024 | opg.optica.org | Jung-Tsung Shen |Qihang Liu

Photon–photon correlations assume a pivotal significance in optical coherence. Recently, a new, to the best of our knowledge, type of quantum photonic states, the coherent state of photonic dimers, has been introduced, wherein the fundamental building blocks are two-photon bound states, instead of individual photons as in conventional lasers.

Nov 7, 2023 | link.aps.org | Qihang Liu |Yao Zhou |Jung-Tsung Shen

The concept of coherent states of single photons is generalized to the scenario wherein the fundamental building blocks are entangled two-photon states rather than single-photon states. To provide a concrete discussion, the case of photonic dimers (two-photon bound states) is explored. The coherent states of photonic dimers are defined. The correlation functions are calculated and expressed in terms of series expansion which is suitable for computational investigations.