visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2015-10-16 16:00 
연사  
장소 E6-2. 2nd fl. #2501 

Fluctuations of entropy production in partially masked electric circuits

 

Prof. Yung-Fu Chen

Solid-state Laser Physics Laboratory

Department of Physics

National Central University

 

Oct. 16th (Fri), 16:00 PM

E6-2. 2nd fl. #2501

 

We experimentally investigate fluctuations of entropy production in two capacitively coupled RC circuits driven by constant currents. We focus on analyzing entropy production by merely utilizing partial information of the system with two different reduced descriptions, and give two main statements based on the experimental and theoretical agreements. First, the apparent entropy production derived from a naive reduced description of the circuit follows the Fluctuation Theorem (FT) in the long time limit compared with the intrinsic RC time constants in the circuit. On the other hand, the coarse-grained entropy production follows FT in the short time limit. Moreover, our results imply in general FT can be observed in a system where its environmental couplings to all slow degrees of freedom are weak.

 

Contact: Prof. Sungjae Cho, Physics Dept., (sungjae.cho@kaist.ac.kr) 

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
572 2015-11-28 10:00    Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier
571 2015-12-01 16:00    Introducing extra dimensions to spectroscopic studies of advanced quantum materials
570 2015-12-02 16:00    Samarium Hexaboride: Is it a Topological insulator?
569 2015-12-03 16:00    Hybrid solid state spin qubits in wide bandgap semiconductors
568 2015-12-09 11:00    Functional Imaging & Monitoring of Brain & Breast with Diffuse Light
567 2015-12-09 14:00    SWELLABLE COLLOIDAL PARTICLES ARE SWELL
566 2015-12-11 13:30    Quantum spin liquid in the 1/3 depleted triangular lattice Ba3(Ru1-xIrx)Ti2O9
565 2015-12-11 15:45    Dynamical mean field theory studies on heavy fermion system
564 2015-12-17 11:00    Wavefront engineering for in-vivo Deep brain imaging
563 2016-01-11 16:00    Mott Physics in the Strong Spin-Orbit Coupling Regime
562 2016-01-26 14:00    Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
561 2016-03-07 16:00    Physics Colloquium : 2016 Spring file
560 2016-03-11 13:30    Physics Seminar Serises : 2016 Spring file
559 2016-03-11 13:30    Topological phases of matter in nonequilibrium: Topology of the Wannier-Stark ladder
558 2016-03-11 16:00    Jan. Switching handedness of of chiral solitons in Z4 topological insulators
557 2016-04-01 14:30    Interference of single charged particles without a loop and dynamic nonlocality
556 2016-04-01 16:15    Cotunneling drag effect in Coulomb-coupled quantum dots
555 2016-04-04 09:30    Radio frequency engineering
554 2016-04-05 16:00    A new impurity solver for multi-orbital systems: adaptive truncation of the Hilbert space
553 2016-04-06 15:30    Superconducting Quantum Interference Devices for Precision Detection