Preface

The 44th Vietnam Conference on Theoretical Physics (VCTP-44) was held during 29 July - 1 August 2019 in Dong Hoi, Viet Nam. The VCTP-44 was organized by the Institute of Physics, Vietnam Academy of Science and Technology (IOP-VAST) under the auspices of the Vietnamese Theoretical Physics Society (VTPS). The VCTP, formerly known as NCTP, has been an annual activity of VTPS for over 40 years. The VCTP is aimed to be an international conference for physicists in Vietnam, in the region and worldwide. Our mission is to foster scientific exchanges and to promote a high-standard level of research and education in Vietnam and in South East Asia. The conference covered a wide range of theoretical physics topics from 4 major fields • Particle, nuclear and astro-physics, • Molecular physics, quantum optics and quantum computation, • Condensed matter physics, • Soft matter, biological and interdisciplinary physics. 159 participants participated in the conference. 13 invited talks, 22 oral and 94 poster contributions were presented. This volume contains selected papers contributed by the participants. Editors of the VCTP-44 Proceedings Trinh Xuan Hoang, Hoang Anh Tuan and Vu Ngoc Tuoc List of Organizer, Sponsors, Honorary Chair, Chair, Organizing Committee, Program Committee, Secretariat and List of Participants are available in this pdf.