-
Recent Posts
Archives
- April 2024
- April 2023
- March 2023
- February 2023
- December 2022
- October 2022
- August 2022
- July 2022
- April 2022
- March 2022
- February 2022
- December 2021
- October 2021
- August 2021
- May 2021
- March 2021
- February 2021
- December 2020
- October 2020
- September 2020
- July 2020
- June 2020
- February 2020
- January 2020
- December 2019
- August 2019
- April 2019
- February 2019
- October 2018
- June 2018
- May 2018
- April 2018
- February 2018
- December 2017
- November 2017
- August 2017
- July 2017
- March 2017
- February 2017
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
Feeds
Author Archives: Mateus Araújo
Why I am unhappy about all derivations of the Born rule (including mine)
There are a lot of derivations of the Born rule in the literature. To cite just a few that I’m most familiar with, and illustrate different strategies: by Everett, Deutsch, Wallace, Żurek, Vaidman, Carroll and Sebens, me, and Mandolesi. I’m … Continue reading
Posted in Uncategorised
15 Comments
P-values and Bayes factors
I’m feeling bad about having used $p$-values in my paper about Bell inequalities, despite considering them bullshit. The reason we decided to do it is because we wanted the paper to be useful for experimentalists, and all of them use … Continue reading
Posted in Uncategorised
Comments Off on P-values and Bayes factors
Hilbert’s Hotel and Gödel’s Freezer
A friend of mine, Flavien Hirsch, invented a fascinating paradox in probability, called Hilbert’s Hotel and Gödel’s Freezer. Technically speaking it is the same thing as the Sleeping Beauty problem, which I’ve written about here, but I find it much … Continue reading
Posted in Uncategorised
1 Comment
Beautiful angles with beautiful cosines
I’ve recently proved a theorem that is probably well-known to anyone that studied number theory. I didn’t know it before, though, and it was a lot of fun, so I decided to write it up here in case there are … Continue reading
Posted in Uncategorised
Comments Off on Beautiful angles with beautiful cosines
Implementing impossible functions via tomography
A long time ago I had a conversation with Daniel Nagaj about the following problem: given access to an unknown unitary gate $U$, is it possible to build the gate control-$U$ out of it? Nagaj argued that it was impossible, … Continue reading
Posted in Uncategorised
Comments Off on Implementing impossible functions via tomography
Explicitly local quantum mechanics
I’ve just attended a nice online talk by Charles Bédard about his somewhat recent paper, where he studies the explicitly local model of quantum mechanics developed by Deutsch and Hayden, with a twist by Raymond-Robichaud. I think it’s a neat … Continue reading
Posted in Uncategorised
6 Comments
Why QBism is completely empty
A good friend of mine, Jacques Pienaar, has recently converted to QBism, as often happens to people that spend too much time around Chris Fuchs. Saddened by these news, I’ve decided to write a blog post explaining why QBism doesn’t … Continue reading
Posted in Uncategorised
44 Comments
Mistakes, mistakes, mitsakes
When I write someone to tell them there’s a mistake in their paper, I usually get one of these five reactions, ordered from best to worst: “It’s not a mistake.” (and they’re right) “Indeed, that’s wrong, I’ll correct it.” “It’s … Continue reading
Posted in Uncategorised
Comments Off on Mistakes, mistakes, mitsakes
The two-envelope paradox
A colleague of mine, Simon Morelli, told me about a fascinating puzzle, the two-envelope paradox: you can take one of two envelopes with money inside them, promised to contain one $x$ and the other $2x$ for some $x > 0$. … Continue reading
Posted in Uncategorised
2 Comments
The problem with being your own father
is not really a moral one. In the typical time travel story you were abandoned as a child, so after you travel back in time you don’t even know who is supposed to be your mother. Now what can you … Continue reading
Posted in Uncategorised
Comments Off on The problem with being your own father