Hidden variable theory

Spekkens toy model

The Spekkens toy model is a conceptually simple toy hidden-variable theory introduced by Robert Spekkens in 2004, to argue in favour of the epistemic view of quantum mechanics. The model is based on a foundational principle: "If one has maximal knowledge, then for every system, at every time, the amount of knowledge one possesses about the ontic state of the system at that time must equal the amount of knowledge one lacks." This is called the "knowledge balance principle". Within the bounds of this model, many phenomena typically associated with strictly quantum-mechanical effects are present. These include (but are not limited to) entanglement, noncommutativity of measurements, teleportation, interference, the no-cloning and no-broadcasting theorems, and unsharp measurements. The toy model cannot, however, reproduce quantum nonlocality and quantum contextuality, as it is a local and non-contextual hidden-variable theory. (Wikipedia).

Video thumbnail

Speks Magnetic Balls with Rachel | Creative Gift Ideas | Exploratorium

Buy online: http://explo.me/dEZ730mEsg9 Exploratorium Staff Member Rachel unboxes the Speks Luxe Edition and shows us some of her favorite designs and sculptures. Speks are the perfect fidget toy and work gift that allow you to create insane objects throughout your day. There’s 512 rare m

From playlist Creative Gift Ideas

Video thumbnail

Trapeze Bear Wooden Toy 3D Model

An old toy, very common in the past. Usually made of wood, but also with plastic. Again, the problem is the strings. So I used a few tricks to simulate it. Far from perfect, just to have some fun. Modeled with Solidworks 2015. Rendered with Simlab Composer 6 Mechanical Edition. Free 3D mod

From playlist Wooden Toys

Video thumbnail

Puzzle Numbers Wooden Toy 3D Model

An old toy I had a long ago, made of plastic. Mine was actually with letters, making 4 words. There were a few possible combinations of words. Modeled with Solidworks 2015. Rendered with Simlab Composer 6 Mechanical Edition. Free 3D model at https://skfb.ly/6ZBWz.

From playlist Wooden Toys

Video thumbnail

Helicone Wooden Toy 3D Model

Based on a Youtube video by Grand Illusions (https://www.youtube.com/user/henders007), named Helicone (https://www.youtube.com/watch?v=nkmBLPHGp0E). The video doesn't show how it works, so I made my own version. A very interesting object. Modeled with Solidworks 2015. Rendered with Simlab

From playlist Wooden Toys

Video thumbnail

The Quantum Physicist as Causal Detective: Robert Spekkens and Elie Wolfe Public Lecture

In their live webcast on October 7, 2020, Perimeter researchers Robert Spekkens and Elie Wolfe shed light on the exciting possibilities brought about by applying quantum thinking to the science of cause and effect. They have done pioneering work studying relations the data science known as

From playlist Public Lecture Series

Video thumbnail

Can we Predict Everything?

Order your MinutePhysics TSHIRT! http://dftba.com/minutephysics Einstein didn't like quantum mechanics because it wasn't able to make perfect predictions... but science is not about what you like, it's about what's true! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - h

From playlist MinutePhysics

Video thumbnail

18-Pieces Puzzle Wooden Toy 3D Model

Based on a Youtube video (https://www.youtube.com/watch?v=pulM5tHqZFg). There are seventeen identical pieces and one different, the locking. Modeled with Solidworks 2015. Rendered with Simlab Composer 6 Mechanical Edition. Free 3D model at https://skfb.ly/6ZDqQ.

From playlist Wooden Toys

Video thumbnail

Excavator with Syringes Wooden Toy 3D Model

Based on a youtube video https://www.youtube.com/watch?v=e83drbSOoi4. Modeled with Solidworks 2015. Rendered with Simlab Composer 6 Mechanical Edition.

From playlist Wooden Toys

Video thumbnail

Robert Spekkens Public Lecture: The Riddle of the Quantum Sphinx

In his Feb. 7 public lecture at Perimeter Institute, Robert Spekkens will explain why he believes that many quantum mysteries are a result of a category mistake concerning the nature of quantum states. Perimeter Institute (charitable registration number 88981 4323 RR0001) is the world’s l

From playlist Public Lecture Series

Video thumbnail

Donut Sit-ups Wooden Toy 3D Model

Based on a Youtube video (https://www.youtube.com/watch?v=7Hn4LrVc2jM), from Cabaret Mechanical Theatre (https://www.youtube.com/user/CabaretMechTheatre). The video doesn't show much, so I developed my own mechanisms. Free 3D model at https://skfb.ly/onEXx.

From playlist Wooden Toys

Video thumbnail

Workshop 1 "Operator Algebras and Quantum Information Theory" - CEB T3 2017 - N.LaRacuente

Nicholas LaRacuente (UIUC) / 14.09.17 Title: Non-commutative L_p Spaces and Asymmetry Measures Abstract: We relate a common class of entropic asymmetry measures to non-commutative L_p space norms. These asymmetry measures have operational meanings related to the resource theory of asymme

From playlist 2017 - T3 - Analysis in Quantum Information Theory - CEB Trimester

Video thumbnail

Pushing Robots Wooden Toy 3D Model

Modeled with Solidworks 2016. Rendered with Simlab Composer 8 Mechanical Edition. Free 3D model at https://skfb.ly/6YMAo.

From playlist Wooden Toys

Video thumbnail

Flying Dragon Wooden Toy 3D Model

Based on another video from Youtube (https://www.youtube.com/watch?v=BivrdzMSQiI). I made my own mechanisms, since there were no details. New version at https://youtu.be/nrNf4KOg7G0.

From playlist Wooden Toys

Video thumbnail

TESS Mission's First Earth-size World in Star's Habitable-zone

NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface. Scientists confirmed the find, called TOI 700 d, usin

From playlist Habitable Planets Beyond Earth

Video thumbnail

How Model Cars are Made (1962) | British Pathé

Learn how matchbox model toy cars were made in 1962 from the wooden model to when it is racing off the end of the assembly line. For Archive Licensing Enquiries Visit: https://goo.gl/W4hZBv Explore Our Online Channel For FULL Documentaries, Fascinating Interviews & Classic Movies: https:

From playlist Toys & Fun Inventions

Video thumbnail

DjangoCon 2019 - Prefetching for Fun and Profit by Mike Hansen

DjangoCon 2019 - Prefetching for Fun and Profit by Mike Hansen This talk was presented at: https://2019.djangocon.us/talks/prefe... LINKS: Follow Mike Hansen 👇 On GitHub: https://github.com/mwhansen Follow DjangCon US 👇 https://twitter.com/djangocon Follow DEFNA 👇 https://twitter.com

From playlist DjangoCon US 2019

Video thumbnail

Eddy and Lyn Goldfarb - Eddy's World - CoM Oct 2020

Eddy’s World tells the story of Eddy Goldfarb, a 98, year-old working toy inventor, best known for the iconic Yakity Yak Teeth and nearly 800 classic toys. He designed his first toys while on submarine duty during WWII, launching his 80-year career as an independent toy inventor. These day

From playlist Celebration of Mind

Video thumbnail

17/11/2015 - Mihalis Dafermos - The stability problem for black holes...

The stability problem for black holes & the cosmic censorship conjectures https://philippelefloch.files.wordpress.com/2015/11/2015-ihp-mihalisdafermos.pdf

From playlist 2015-T3 - Mathematical general relativity - CEB Trimester

Video thumbnail

Making Things, Doing Science - by Arvind Gupta

For notifications about upcoming ICTS outreach events & YouTube live streams of such events, register here:- https://www.icts.res.in/outreach/register Speaker - Arvind Gupta (Children’s Science Center, IUCAA - former) This Kaapi with Kuriosity Public Talk was filmed on August 19th, 2018

From playlist Kaapi With Kuriosity (A Monthly Public Lecture Series)

Related pages

Qubit | Quantum teleportation | Albert Einstein | Bell's theorem | No-cloning theorem | Reality | Toy model | Quantum nonlocality | Mathematics | Hidden-variable theory | Orthogonality | Convex combination | Categorical quantum mechanics | Quantum entanglement | Fidelity of quantum states | Axiom | Hilbert space | Controlled NOT gate | Quantum information | Liouville's theorem (Hamiltonian) | Bloch sphere | Ontic