@inproceedings{Takeda:2022tX, author = "Takeda, Shinji", title = "{A novel method to evaluate real-time path integral for scalar $\phi^4$ theory}", doi = "10.22323/1.396.0532", booktitle = "Proceedings of The 38th International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE2021)", year = 2022, volume = "396", pages = "532" }