Inverse problems

Phase problem

In physics, the phase problem is the problem of loss of information concerning the phase that can occur when making a physical measurement. The name comes from the field of X-ray crystallography, where the phase problem has to be solved for the determination of a structure from diffraction data. The phase problem is also met in the fields of imaging and signal processing. Various approaches of phase retrieval have been developed over the years. (Wikipedia).

Video thumbnail

Light and Optics 7_2 Interference

Out of phase waves lead to interference.

From playlist Physics - Light and Optics

Video thumbnail

Why Time Delay Matters | Control Systems in Practice

Time delays are inherent to dynamic systems. If you’re building a controller for a dynamic system, it’s going to have to account for delay in some way. Time-Delay Systems: Analysis and Design with MATLAB and Simulink: http://bit.ly/2C354yp Time delays exist in two varieties: signal dist

From playlist Control Systems in Practice

Video thumbnail

Phase separation in the Allen-Cahn equation, with a start in slow motion

Like the video https://youtu.be/t1swj0QJUTw this simulation shows a solution of the Allen-Cahn equation for phase separation, on a rectangular domain with periodic boundary conditions, starting from a random initial configuration. Time has been slowed down at the beginning, to give a bette

From playlist Reaction-diffusion equations

Video thumbnail

Phase separation in the Allen-Cahn equation

This video is a high resolution remake of some old simulations on this channel, such as https://youtu.be/NtEhToQOiys . It shows a solution of the Allen-Cahn equation for phase separation, on a rectangular domain with periodic boundary conditions. Phase separation occurs in mixtures of two

From playlist Reaction-diffusion equations

Video thumbnail

The Step Response | Control Systems in Practice

Check out the other videos in this series: https://www.youtube.com/playlist?list=PLn8PRpmsu08pFBqgd_6Bi7msgkWFKL33b This video covers a few interesting things about the step response. We’ll look at what a step response is and some of the ways it can be used to specify design requirements f

From playlist Control Systems in Practice

Video thumbnail

The Role of Symmetry in Phase Transitions - Tom Spencer

Tom Spencer Professor, School of Mathematics, Institute for Advanced Study January 23, 2012 This talk will review some theorems and conjectures about phase transitions of interacting spin systems in statistical mechanics. A phase transition may be thought of as a change in a typical spin c

From playlist Mathematics

Video thumbnail

What is the displacement of a particle from a position graph

Keywords 👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of the particle by differentiating the function

From playlist Particle Motion Problems

Video thumbnail

What is the velocity of the particle at a given time from graph

Keywords 👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of the particle by differentiating the function

From playlist Particle Motion Problems

Video thumbnail

Multiple Phase Transitions in a System of Hard Core Rotors on a Lattice (Lecture 1) by Deepak Dhar

INFOSYS-ICTS CHANDRASEKHAR LECTURES MULTIPLE PHASE TRANSITIONS IN A SYSTEM OF HARD CORE ROTORS ON A LATTICE SPEAKER: Deepak Dhar (Distinguished Emeritus Professor and NASI-Senior Scientist, IISER-Pune, India) VENUE: Ramanujan Lecture Hall and Online DATE & TIME: Lecture 1: Monday, D

From playlist Infosys-ICTS Chandrasekhar Lectures

Video thumbnail

Dynamical phase transitions in Markov processes by Hugo Touchette

COLLOQUIUM DYNAMICAL PHASE TRANSITIONS IN MARKOV PROCESSES SPEAKER: Hugo Touchette (Stellenbosch University, South Africa) DATE: Mon, 15 July 2019, 15:00 to 16:00 VENUE:Emmy Noether Seminar Room, ICTS Campus, Bangalore ABSTRACT Dynamical phase transitions (DPTs) are phase transitio

From playlist ICTS Colloquia

Video thumbnail

Damien Furfaro: A simple HLLC-type Riemann solver for compressible non-equilibrium two-phase flows

Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b

From playlist Mathematical Physics

Video thumbnail

Yulong Dong - Fast algorithms for quantum signal processing - IPAM at UCLA

Recorded 24 January 2022. Yulong Dong of the University of California, Berkeley, presents "Fast algorithms for quantum signal processing" at IPAM's Quantum Numerical Linear Algebra Workshop. Abstract: The recently developed quantum singular value transformation (QSVT) [Gilyen, Su, Low, Wie

From playlist Quantum Numerical Linear Algebra - Jan. 24 - 27, 2022

Video thumbnail

Design Thinking Full Course | Design Thinking Process | Design Thinking For Beginners | Simplilearn

🔥Advanced Certification In UI UX Design: https://www.simplilearn.com/ui-ux-certification-training-course?utm_campaign=DesignThinking-4nTh3AP6knM&utm_medium=DescriptionFirstFold&utm_source=youtube In this design thinking tutorial, we will be looking at what is design thinking, why design t

From playlist Design Thinking [2022 Updated]

Video thumbnail

Phase transitions in hard-core systems by Deepak Dhar ( Lecture - 1 )

PROGRAM BANGALORE SCHOOL ON STATISTICAL PHYSICS - X ORGANIZERS : Abhishek Dhar and Sanjib Sabhapandit DATE : 17 June 2019 to 28 June 2019 VENUE : Ramanujan Lecture Hall, ICTS Bangalore This advanced level school is the tenth in the series. This is a pedagogical school, aimed at bridgin

From playlist Bangalore School on Statistical Physics - X (2019)

Video thumbnail

Novel Phases in SU(N) “Designer” Hamiltonian with Two-Column Representation by Nisheeta Desai

PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In

From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)

Video thumbnail

PHYS 126 | Lecture 2AB - 2D Interference and Beats

1:23 1D Interference Review 8:46 1D Interference Problem 31:00 2D Waves 35:19 2D Interference with Demo Disaster 42:18 2D Interference Problem 54:30 Beats with Fast Demos

From playlist PHYS 126 | Standing Waves, Interference, and Diffraction

Video thumbnail

Quantum Spin Liquids in Kagome Lattice by Subhro Bhattacharjee

29 May 2017 to 02 June 2017 VENUE: Ramanujan Lecture Hall, ICTS Bangalore This program aims to bring together people working on classical and quantum systems with disorder and interactions. The extensive exploration, through experiments, simulations and model calculations, of growing cor

From playlist Correlation and Disorder in Classical and Quantum Systems

Video thumbnail

Pancharatnam-Zak phase by Vivek Vyas

DISCUSSION MEETING : GEOMETRIC PHASES IN OPTICS AND TOPOLOGICAL MATTER ORGANIZERS : Subhro Bhattacharjee, Joseph Samuel and Supurna Sinha DATE : 21 January 2020 to 24 January 2020 VENUE : Madhava Lecture Hall, ICTS, Bangalore This is a joint ICTS-RRI Discussion Meeting on the geometric

From playlist Geometric Phases in Optics and Topological Matter 2020

Video thumbnail

How to determine when a particle is moving to the left and right

Keywords 👉 Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when the function modeling the position of the particle is given with respect to the time, we find the speed function of the particle by differentiating the function

From playlist Particle Motion Problems

Related pages

Phase retrieval | Signal processing | Angle of incidence (optics) | Measurement in quantum mechanics | Brute-force search | Fourier transform | Degrees of freedom (physics and chemistry) | Wavelength | Electron density