Imaging objects out of sight using a single photodetector

YouTube

New #openaccess publication #SciPost #Physics

Bethe Ansatz inside Calogero-Sutherland models

Gwenaël Ferrando, Jules Lamers, Fedor Levkovich-Maslyuk, Didina Serban
SciPost Phys. 18, 035 (2025)
https://scipost.org/SciPostPhys.18.1.035

#TAU #DESY #CEASaclay #CNRS #ParisSaclayUniversity #IPhT
#Hadamard

SciPost: SciPost Phys. 18, 035 (2025) - Bethe Ansatz inside Calogero-Sutherland models

SciPost Journals Publication Detail SciPost Phys. 18, 035 (2025) Bethe Ansatz inside Calogero-Sutherland models

Does a Hadamard matrix need to be a 2 by 2 matrix? #quantumcomputing #Hadamard #matrix #math #physics
Why is a Hadamard matrix fundamental to quantum computing? #why #Hadamard #quantumcomputing
Is the Hadamard matrix a fundamental matrix for quantum computing? #quantum #quantumcomputing #Hadamard

This is the first in a series of four articles based on my Jupyter Notebooks exploring quantum computing as a tool for generating random number distributions.

Many of the introductory quantum computing articles and courses out there are not quite right. They either quickly head deep into details that require a University-level physics or mathematics background, or sit at a high level based on analogies that are out of step with how quantum computers actually work. I want to try something different, and introduce some useful quantum computing algorithms using high-school level maths. I will avoid much (but maybe not all) of the jargon, and show how the algorithms can be implemented on the commonly available Qiskit platform.

https://aes.id.au/blog/1354
#hadamard #lesson #qiskit #quantum #quantumcomputing #qubit #random #technology

A Quantum Computer is a random number generator – Andrew E. Scott

Is this #math question about #Hadamard matrices unresolved? Is there a \(k\) such that there is no \( 4k \times 4k)\ matrix \(H)\ with -1 or 1 entries such that \(H H^t=4k Id)\?

A basic introduction to #QIBO with a link to online python notebook plus accompanying slides which I used for a tutorial for understands at #NTU #SG.

The examples include:
- basic #Clifford group generators such as Z, X and #Hadamard,
- Preparing a #Bellstate with a #CNOT
- #swaptest, sampling and histograms

https://youtube.com/playlist?list=PLHcR1d_bQV8wnexJ6oAnqddzRdf40YhRc

I'm linking the playlist, suggestions, comments and requests warmly welcome!

Basic Qibo tutorial

Slides: https://slides.com/marekgluza/quantum_processing_qibo Fill in solutions yourself: https://colab.research.google.com/drive/1ImhSjxdc_L73fLeqMS0R83wz0G...

YouTube
#Hadamard transform is also used in data #encryption, as well as many signal processing and data compression algorithms, such as JPEG XR and MPEG-4 AVC. In video compression applications, it is usually used in the form of the sum of absolute transformed differences.
- one might use the controlled NOT gate and the Walsh–#Hadamard gate to entangle two qubits without violating the no-cloning theorem as no well-defined state may be defined in terms of a subsystem of an entangled state.