Time: 1:20pm~2:30pm, September 15 (Thursday)
Title: Temporal and spatial fractional frequency locking in solid state lasers: Devil’s staircase
Speaker: Prof. Hsing-Chih Liang
(Department of Optoelectronics and Materials Technology, National Taiwan Ocean University)
Place: Science Building III 1F SC157
Time: 1:20pm~3:10pm, April 14 (Thursday)
Title: Direct Searches of Light Dark Matter
Speaker: Prof. Cheng-Pang Liu
(Department of Physics, National Dong Hwa University)
Place: Science Building III 1F SC157
Time: 1:20pm~3:10pm, December 23 (Thursday)
Title: CMS and CMS
Speaker: Prof. Chia-Ming Kuo
(Department of Physics, National Central University)
Place: Science Building III 1F SC157
Time: 1:20pm~3:10pm, December 9 (Thursday)
Title: The Road Not Taken: Decadal Mission on Higgs/Flavor
Speaker: Prof. George Wei-Shu Hou
(Department of Physics, National Taiwan University)
Place: Science Building III 1F SC157
Time: 1:20pm~3:10pm, November 25 (Thursday)
Title: Entanglement, non-unitary conformal field theories, and non-Hermitian quantum systems
Speaker: Prof. Po-Yau Chang
(Department of Physics, National Tsing Hua University)
Place: Science Building III 1F SC157
Abstract:
Entanglement is a powerful tool to diagnose many-body quantum systems. The triumph examples are the critical systems where the low energy property can be described by conformal field theories (CFTs). The central charge which uniquely characterizes the CFT can be perfectly extracted from the entanglement entropy. However, the entanglement properties for non-unitary CFTs are not well understood. Moreover, the microscopic models of fermionic systems which can be described by non-unitary CFTs have not been explored. In this colloquium, I would like to demonstrate several non-Hermitian fermionic systems which can be described by non-unitary CFTs, and show their entanglement properties can be correctly obtained by our proposed generic entanglement entropy.
Time: 1:20pm~3:10pm, November 18 (Thursday)
Title: Simulate quantum transport by quench dynamics using matrix product state
Speaker: Prof. Chia-Min Chung
(Department of Physics, National Sun Yat-Sen University)
Google Meet Link: http://meet.google.com/xhy-yotv-wax
Abstract: Studying the transport properties of a nanostructure is a key tool in understanding and developing quantum devices. In this work we develop a method to simulate quantum transport in interacting systems using matrix product state. In particular we develop a method to simulate the current in a superconducting chain with charging energy, which is close related to a Majorana chain system. We benchmark our result in both a quantum dot system and a Majorana chain.
Time: 1:20pm~3:10pm, October 21 (Thursday)
Title: Early Stage of Star Formation
Speaker: Prof. Shih-Ping Lai
(Department of Physics, National Tsing Hua University)
Google Meet Link: http://meet.google.com/xhy-yotv-wax
Time: 1:20pm~3:10pm, October 14 (Thursday)
Title: Correlated dynamics in quantum link models
Speaker: Prof. Yi-Ping Huang
(Department of Physics, National Tsing Hua University)
Google Meet Link: http://meet.google.com/xhy-yotv-wax
Abstract: Constrained systems, such as frustrated magnets, are crucial to form non-trivial entanglement. However, real-time dynamics for those systems are relatively unexplored. In this talk, I will discuss the quench dynamics of a particular type of model: the 2D quantum link model. I will discuss the dynamics within a specific gauge sector where the dynamical quantum phase transition is observed in this 2D correlated constrained system. I will also discuss the influence of the initial wave function. We found the disorder-free localization phenomena when we prepared the initial state as a superpositi on of di fferent superselection sectors.
Time: 1:20pm~3:10pm, October 7 (Thursday)
Title: Transfer Matrix Revolutions
Speaker: Prof. Ying-Jer Kao
(Department of Physics, National Taiwan University)
Google Meet Link: http://meet.google.com/xhy-yotv-wax
Time: 1:20pm, March 25 (Thursday)
Title: STM/STS Studies of Layered Topological Materials
Speaker: Chun-Liang Lin
(Electrophysics department, National Yang Ming Chiao Tung University )
Place: Science Building III 1F SC157
Small but energetic
Diversified but active
ADD： 1001 University Road, Hsinchu, Taiwan 30010
TEL：+886-3-572 0810
FAX：+886-3-572 0728
MAIL：f641126@nycu.edu.tw
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