[原分所] 01/02(Wed.) IAMS Lecture Announcement-Dr. Chih-Chun Chien
截止日期：2012-01-02
IAMS Lecture Announcement
中研院原分所演講公告
Title: Atomtronics: Building Devices with Cold-Atoms and Optical Lattices
Speaker: Dr. Chih-Chun Chien (Los Alamos National Laboratory, USA)
Time: 10:00AM, January 2 (Wednesday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Wei-Hua Wang 王偉華博士
Abstract:
Recent years we have seen tremendous progress in manipulating
laser-cooled atoms. Combining with engineered optical potentials,
cold-atom systems have demonstrated a variety of interesting phenomena
in and out of equilibrium. A new venture named atomtronics emerges
from the success of cold-atom technologies and becomes a thriving
field. The original proposal of atomtronics was to simulate electronic
devices using analogies from cold-atom systems. However, with the
advance of novel techniques such as optically controllable collisions,
artificial gauge fields, etc., we show that devices driven by
inhomogeneous parameter (density or interactions) or a displacement of
the quantum-mechanical phase should also be feasible. We also
illustrate an atomic analogue of an intensively studied solid-state
phenomenon called the negative differential conductivity. Since
cold-atom systems should be modeled as an isolated quantum system,
conventional mesoscopic transport theories such as Boltzmann equation,
Landauer formalism, etc., impose assumptions that may not apply to
such systems and we implement a micro-canonical formalism that is
particularly suitable for monitoring the dynamics of cold-atom
systems. Our work also addresses some fundamental issues in
non-equilibrium physics such as the role of interaction, spin
statistics, and different thermodynamics limits that may not be easily
studied in conventional solid-state devices.
Reference:
[1] C. C. Chien, M. Zwolak, and M. Di Ventra, Phys. Rev. A 85, 041601(R) (2012).
[2] C. C. Chien and M. Di Ventra, EPL 99, 40003 (2012).
[3] C. C. Chien, D. Gruss, M. Di Ventra, and M. Zwolak, arXiv: 1203.5094.
[4] C. C. Chien and M. Di Ventra, arXiv: 1211.7085.
中研院原分所演講公告
Title: Atomtronics: Building Devices with Cold-Atoms and Optical Lattices
Speaker: Dr. Chih-Chun Chien (Los Alamos National Laboratory, USA)
Time: 10:00AM, January 2 (Wednesday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Wei-Hua Wang 王偉華博士
Abstract:
Recent years we have seen tremendous progress in manipulating
laser-cooled atoms. Combining with engineered optical potentials,
cold-atom systems have demonstrated a variety of interesting phenomena
in and out of equilibrium. A new venture named atomtronics emerges
from the success of cold-atom technologies and becomes a thriving
field. The original proposal of atomtronics was to simulate electronic
devices using analogies from cold-atom systems. However, with the
advance of novel techniques such as optically controllable collisions,
artificial gauge fields, etc., we show that devices driven by
inhomogeneous parameter (density or interactions) or a displacement of
the quantum-mechanical phase should also be feasible. We also
illustrate an atomic analogue of an intensively studied solid-state
phenomenon called the negative differential conductivity. Since
cold-atom systems should be modeled as an isolated quantum system,
conventional mesoscopic transport theories such as Boltzmann equation,
Landauer formalism, etc., impose assumptions that may not apply to
such systems and we implement a micro-canonical formalism that is
particularly suitable for monitoring the dynamics of cold-atom
systems. Our work also addresses some fundamental issues in
non-equilibrium physics such as the role of interaction, spin
statistics, and different thermodynamics limits that may not be easily
studied in conventional solid-state devices.
Reference:
[1] C. C. Chien, M. Zwolak, and M. Di Ventra, Phys. Rev. A 85, 041601(R) (2012).
[2] C. C. Chien and M. Di Ventra, EPL 99, 40003 (2012).
[3] C. C. Chien, D. Gruss, M. Di Ventra, and M. Zwolak, arXiv: 1203.5094.
[4] C. C. Chien and M. Di Ventra, arXiv: 1211.7085.