-
Index
-
Brief Description
-
Collaborations & on-going project
-
Activities
-
Publication
-
Highlights of Research Results
|
Coordinator: |
Da-Shin Lee (NDHU) |
Committee members:
|
Chiang-Mei Chen (NCU) |
| Hing-Tong Cho (TKU) | |
| Chung-Hsien Chou (NCKU) | |
| Shih-Yuin Lin (NCUE) | |
| James M. Nester (NCU) | |
| Chopin Soo (NCKU) | |
| I-Ching Yang (NTTU) | |
| Hwei-Jang Yo (NCKU) | |
| Hoi-Lai Yu (AS) |
Brief Description |
|
|
The
subject materials that we have identified so far are not only the
hottest current research topics, more important, these are the areas
that our community have enough technical know how, expertise, and
insights to make major contributions. | |
In Cosmology: |
|
To
investigate the detailed mechanisms of inflation from non-equilibrium
point of view(in particular, stochastic inflation) and compare with CMB
data and large scale structures of the universe; the origin of dark
matter within or beyond the Standard Model; the physics, properties,
and origin of dark energy. |
|
In General Relativity: |
|
Gravitational
energy, gravitational radiation reactions and quasi-normal modes of
black holes which affect lots of topics in cosmology will be our main
activities. |
|
In Quantum Gravity: |
|
Canonical
quantization of gravity using Ashtekar variables, stochastic gravity
using closed-time-path techniques, and quantum to classical transitions
will be studied. |
|
◎ Major members of our focus group are: |
|
Chiang-Mei Chen (NCU) on gravitation and string theories |
|
Hing-Tong Cho (TKU) on gravitation and black holes |
|
Da-Shin Lee (NDHU) on non-equilibrium physics and cosmology |
|
Wo-Lung Lee (NTNU) on large scale structures of Universe |
|
James Michael Nester (NCU) on gravitation and Quasi-local masses |
|
Kin-Wang Ng (Academia Sinica) on cosmology and data analysis |
|
Chopin Soo (NCKU) on quantum field theory and gravitation |
|
Hwei-Jang Yo (NCKU) on numerical general relativity |
|
Hoi-Lai Yu (Academia Sinica) on quantizing gravity and cosmology |
|
◎ Frequent visitors are: |
|
Bei-Lok Hu (University of Maryland) |
|
Roh-Suan Tung (Shanghai Normal University) |
|
Yun-Kau Lau (Applied Mathematics Institute, Academia Sinica, Bejing) |
|
Larry H. Ford (Tufts University) |
|
Misao Sasaki (Kyoto University) |
|
Ray Rivers (University of London) |
|
Collaborations & on-going project |
||
(1) |
To
generate long-term collective force in Cosmology and Gravity be
searched activities among the local communities and Asia Pacific areas; |
|
(2) |
Using
non-equilibrium field theories and general relativity as keys to
generate interdisciplinary and cutting-edge research activities on
cosmology, classical and quantum gravity and quantum information
science; |
|
(3) |
To
train and create chances for talented graduate students and postdocs to
make major contributions by helping them to identify hot and important
interdisciplinary problems in the area of cosmology, gravitation and
quantum gravity. |
|
◎ The following major activities are carried
out from last year to the future on top of our regular/irregular
journal club meetings in Institute of Physics,
Academia Sinica and Department of Physics,
National Central University and shall be carry on in the next. |
||
(1) |
2007 Tainan School and Workshop on
Cosmology and Gravitation at NCKU
(13th – 16th January, 2007): |
|
This was the first school/workshop in this field in Taiwan so far. The main purpose of this meeting is to introduce to students and researchers the latest developments in stochastic quantum gravity, cosmology and semi-classical quantum gravity. We have about 70 graduate students, postdocs and local faculities and faculties from Asia Pacific area in the meeting. Major lectures were delivered by researcher from overseas:L. Ford (Tufts U.), Bei-Lok Hu (Maryland U.), Misao Sasaki (Kyoto U.), Albert Roura(Los Alamos), E. Verdaguer (Universitat de Barcelona), Y. K. Lau (Inst. of Applied Math., Academica Sinica, Beijing), R. S. Tung (Shanghai Normal U.) Research topics in applying stochastic gravity to cosmology and black holes were carried out by D.S. Lee, K.W. Ng, W.L. Lee and H.T. Cho among group members immediately after the workshop and papers were also published (see publication list in the below) in these related areas. |
||
(2) |
2007 Taipei School/Workshop on Large
Scale Structures of the Universe(28th May
– 2nd June, 2007, NTNU): |
|
|
Though the discovery of dark energy led us venturing into an uncharted territory, large piles of precise observational data and efficient numerical techniques have helped the study on the Universe continue to thrive in the 21st century.The purpose of this School/Workshop was to introduce students and faculties in Taiwan the progress and the state of the art in this fascinating frontier of physics and astronomy. The lectures were delivered by: Li-Zhi Fang( Dept. of Physics, University of Arizona), Prof. Houjun Mo( Dept. of Astronomy, Univ. of Massachusetts), Prof. Yipeng Jing(Shanghai Astronomical Observatory), Prof. Long-Long Feng(Purple Mountain Observatory) |
|
(3) |
Collaborate
with the Quantum Information Sciences focus group in running the Summer
School on Nonequilibrium Dynamics and Quantum Coherence (4th – 6th
July, 2007, NCKU) |
|
This
Summer School on Non-equilibrium Dynamics and Quantum Coherence
Phenomena was aimed to provide the basic ideas and concepts of the
method of nonequilibrium theory including the Feynman-Vernon and
coherent state path integral formulation, and Schwinger- Keldysh's
nonequilibrium Green's function method. The lecturers from our focus
group members and visitors are: B. L. Hu and D. S. Lee. We want to emphasize that our postdocs, C.S Chou's and S.Y. Lin's works on topics on Quantum Entanglement and Moving Atoms in Quantum Fields provide excellent examples on how interdisciplinary works between nonequilibrium field theories, general relativity and quantum information science can be combined coherently to achieve major breakthrough towards the understanding of these hot topics which have found important applications in quantum information science and the gravitational wave detecting LIGO physics. |
||
(4) |
Visiting prestigious academic institutes |
|
1. |
With
the help of Prof. L. Ford and B.L. Hu our postdocs (S.Y. Lin, C.S. Chou
and C.H. Wu)were arranged to visit and conduct research at Princeton
‹‹- Highlights of Focus Group University, Univsersity of Maryland, Tuft
University and International Center for Gravitation Research at
University of Pennsylvania. |
|
2. |
With
the help of Prof. Y.K. Lau, 10 graduate students (from NCU, NDHU and
NCKU) were arrange to attend the gravitation workshop at Institute of
Applied Mathematics, Academia Sincia, Bejing during the summer. |
|
Activities |
||
The
following major activities are carried out last year on top of our
regular/irregular journal club meetings in Institute of Physics,
Academia Sinica and Department of Physics, National Central University. |
||
(1) |
2007 Tainan School and Workshop on Cosmology and Gravitation at NCKU (13th – 16th January, 2007): |
|
This was the first school/workshop in this field in Taiwan so far. The main purpose of this meeting is to introduce to students and researchers the latest developments in stochastic quantum gravity, cosmology and semi-classical quantum gravity. We have about 70 graduate students, postdocs and local faculities and faculties from Asia Pacific area in the meeting. Major lectures were delivered by researcher from overseas:L. Ford (Tufts U.), Bei-Lok Hu (Maryland U.), Misao Sasaki (Kyoto U.), Albert Roura(Los Alamos), E. Verdaguer (Universitat de Barcelona), Y. K. Lau (Inst. of Applied Math., Academica Sinica, Beijing), R. S. Tung (Shanghai Normal U.) Research topics in applying stochastic gravity to cosmology and black holes were carried out by D.S. Lee, K.W. Ng, W.L. Lee and H.T. Cho among group members immediately after the workshop and papers were also published (see publication list in the below) in these related areas. |
||
(2) |
2007 Taipei School/Workshop on Large Scale Structures of the Universe(28th May – 2nd June, 2007, NTNU): |
|
Though the discovery of dark energy led us venturing into an uncharted territory, large piles of precise observational data and efficient numerical techniques have helped the study on the Universe continue to thrive in the 21st century. The purpose of this School/Workshop was to introduce students and faculties in Taiwan the progress and the state of the art in this fascinating frontier of physics and astronomy. The lectures were delivered by: Li-Zhi Fang( Dept. of Physics, University of Arizona), Prof. Houjun Mo( Dept. of Astronomy, Univ. of Massachusetts), Prof. Yipeng Jing(Shanghai Astronomical Observatory), Prof. Long-Long Feng(Purple Mountain Observatory) |
||
(3) |
Collaborate with the Quantum Information Sciences focus group in
running the Summer School on Nonequilibrium Dynamics and Quantum
Coherence (4th – 6th July, 2007, NCKU) |
|
This Summer School on Non-equilibrium Dynamics and Quantum Coherence Phenomena was aimed to provide the basic ideas and concepts of the method of nonequilibrium theory including the Feynman-Vernon and coherent state path integral formulation, and Schwinger-Keldysh's nonequilibrium Green's function method. The lecturers from our focus group members and visitors are: B. L. Hu and D. S. Lee. We want to emphasize that our postdocs C.S Chou's and S.Y. Lin's works on topics on Quantum Entanglement and Moving Atoms in Quantum Fields provide excellent examples on how interdisciplinary works between nonequilibrium field theories, general relativity and quantum information science can be combined coherently to achieve major breakthrough towards the understanding of these hot topics which have found important applications in quantum information science and the gravitational wave detecting LIGO physics. |
||
(4) |
Visiting prestigious academic institutes |
|
| ||
Publication |
|
[1] |
G. C. Liu, S. Lee and K. W. Ng, Phys. Rev.Lett. 97, 161303 (2006). |
[2] |
C. Soo, Class. Quantum Grav. 24, 1547-1555 (2007) . |
[3] |
J. Nester, J. Phys. A: Math. Theor. 40, 2751-54 (2007). |
[4] |
H.T. Cho, A.S. Cornell, J. Doukas, and W. Naylor, Phys. Rev. D75, 104005 (2007). |
[5] |
H.-T. Cho and C.-L. Ho, J. Phys. A40, 1325 (2007). |
[6] |
C.-M. Chen, D. V. Gal'tsov and D. G. Orlov, Phys. Rev. D75, 084030 (2007). |
[7] |
Shih-Yuin Lin and B. L. Hu, Phys. Rev. D 73, 124018 (2006). |
[8] |
Shih-Yuin Lin and B. L. Hu, Phys. Rev. D, in press (2007). |
[9] |
C.H. Wu, K.W. Ng, W. Lee, D.S. Lee and Y. Y. Charng, JCAP 0702006 (2007). |
[10] |
D.S. Lee, C. Y. Lin and R. J. Rivers, Phys. Rev. Lett. 98, 020603 (2007). |
[11] |
J.T. Hsiang, T.H. Wu, and D.S. Lee, arXiv:hep-th/0706.3075 (submitted to Phys. Rev. D ). |
[12] |
C.H. Chou, B. L. Hu and T. Yu, arXiv:quant-ph/0703088 (submitted to Phys. Rev. D ). |
[13] |
C.H. Chou, C. Soo and H.L. Yu, arXiv:gr-qc/0703072, Phys. Rev. D76(2007) 084004. |
1. |
We
have proved that black holes are elementary particles in superspace and
quantum geometry with spherical symmetry is unitary and singularity
free. This work will be published in PRD and H.L.Yu will be invited to
deliver a talk at The Eighth Asia-Pacific International Conference on
Gravitation and Astrophysics held in Nara in 28th, August, 2007. |
2. |
Obtained
the most stringent limit on the parity violating coupling of Dark
energy to light by using observed cosmic microwave background power
spectra. Phys. Rev. Lett. 97, 161303 (2006). |
3. |
Riemann normal coordinates: a complete accounting; J. Phys. A: Math. Theor. 40, 2751-54. |
4. |
Prof.
D.S. Lee is invited by Prof. R. Rivers to visit London University and
conduct research on applying non-equilibrium techniques to experimental
studies of analog gravity using Bose-Einstein condensation. |
5. |
A
reformulation of the Wheeler-DeWitt equation which highlights the role
of gauge-invariant three-geometry elements is presented in the general
setting of the Barbero-Immirzi extension of Ashtekar's contraints, and
when a cosmological constant is also present, Class. Quantum Grav. 24
(2007) 1547-1555. |
Workshop－2008 Taitung International School/Workshop on Cosmology and Gravitation |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Program |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||