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Dr. Hai-Chao Zhang, Professor of Physics in the key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science. He received his Ph.D. in Physics from Zhongshan (Sun Yat-Sen) University in 2002.
His research interests include coherence of matter-wave,atomic interferometer, and fifth forces due to scalar field and dark energy.
His recent work focuses on detecting a scalar fifth force under laboratory conditions, and obtaining a scalar fifth force via a symmetry-breaking coupling function. He has been exploring how experiments using cold atoms may detect a scalar fifth force (the paper may be viewed https://arxiv.org/abs/1702.03050) and how a novel conceptualization of cosmic evolution—relying on a symmetry-breaking coupling function—may prove to be consistent with the most updated Planck 2018 results. He has proposed an approach—applying the symmetry-breaking coupling function—that evades the two NO-GO theorems (Chameleon no-go theorem and Weinberg’s no-go theorem).
He proposes a New Quasicyclic Universe Model and demonstrates the Universe is a closed space based on the observed concave potential feature of the scalar field shown in the Planck 2018 results [Hai-Chao Zhang, Obtaining a scalar fifth force via a symmetry-breaking coupling between the scalar field and matter, PHYSICAL REVIEW D 101, 044020 (2020) DOI: 10.1103/PhysRevD.101.044020]. He proves that the scalar field can entirely account for the observed late-time cosmic acceleration, due to the symmetry-breaking coupling that can localize the value of the self-interaction potential to act as the cosmological constant.
When the cosmic constraints are satisfied, his scheme predicts that the magnitude of the fifth force is considerably larger than gravity, especially for lower density in the local environment. However, the fifth force is suppressed into a very short interaction range. Tests of gravity are then satisfied. A typical interaction range is estimated to be about 5 μm for the current matter density of the Universe.
The fifth force might be significantly detectable, provided that experiments are designed that allow test particles to pass through the thin-shell region of sources or at least allow test particles to approach the thin shell as closely as possible.
He supervises the Matter-Wave Guided Cold Atom Interferometery Lab. His work has appeared in Phsical Reviw D, Applied Physics Letter, Optics Communications, Chinese Physics B, Chinese Optics Letter, Chinese Physics Letters, J. Phys. B, etc.
Dr. Hai-Chao Zhang, Professor of Physics in the key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science. He received his Ph.D. in Physics from Zhongshan (Sun Yat-Sen) University in 2002.
His research interests include coherence of matter-wave,atomic interferometer, and fifth forces due to scalar field and dark energy.
His recent work focuses on detecting a scalar fifth force under laboratory conditions, and obtaining a scalar fifth force via a symmetry-breaking coupling function. He has been exploring how experiments using cold atoms may detect a scalar fifth force (the paper may be viewed https://arxiv.org/abs/1702.03050) and how a novel conceptualization of cosmic evolution—relying on a symmetry-breaking coupling function—may prove to be consistent with the most updated Planck 2018 results. He has proposed an approach—applying the symmetry-breaking coupling function—that evades the two NO-GO theorems (Chameleon no-go theorem and Weinberg’s no-go theorem).
He proposes a New Quasicyclic Universe Model and demonstrates the Universe is a closed space based on the observed concave potential feature of the scalar field shown in the Planck 2018 results [Hai-Chao Zhang, Obtaining a scalar fifth force via a symmetry-breaking coupling between the scalar field and matter, PHYSICAL REVIEW D 101, 044020 (2020) DOI: 10.1103/PhysRevD.101.044020]. He proves that the scalar field can entirely account for the observed late-time cosmic acceleration, due to the symmetry-breaking coupling that can localize the value of the self-interaction potential to act as the cosmological constant.
When the cosmic constraints are satisfied, his scheme predicts that the magnitude of the fifth force is considerably larger than gravity, especially for lower density in the local environment. However, the fifth force is suppressed into a very short interaction range. Tests of gravity are then satisfied. A typical interaction range is estimated to be about 5 μm for the current matter density of the Universe.
The fifth force might be significantly detectable, provided that experiments are designed that allow test particles to pass through the thin-shell region of sources or at least allow test particles to approach the thin shell as closely as possible.
He supervises the Matter-Wave Guided Cold Atom Interferometery Lab. His work has appeared in Phsical Reviw D, Applied Physics Letter, Optics Communications, Chinese Physics B, Chinese Optics Letter, Chinese Physics Letters, J. Phys. B, etc.
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Physical review D/Physical review Dno. 10 (2023)
arXiv (Cornell University) (2022)
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#Papers: 55
#Citation: 168
H-Index: 6
G-Index: 10
Sociability: 5
Diversity: 2
Activity: 5
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