Eddy Keming Chen
@eddykemingchen.bsky.social
Philosopher @ UC San Diego. Thinking about AI, laws of nature, arrows of time, and quantum foundations. Author of Laws of Physics (Cambridge UP). https://www.eddykemingchen.net
Very impressive!!
November 1, 2025 at 7:39 PM
Very impressive!!
That's wonderful news, Nicole! Congratulations!!!
October 28, 2025 at 3:57 PM
That's wonderful news, Nicole! Congratulations!!!
Thanks so much, Davide! I’m really honored by your engagement with the book. Your presentation was thoughtful, clear, and generous throughout. I'm excited to follow the rest of your series!
April 8, 2025 at 6:59 PM
Thanks so much, Davide! I’m really honored by your engagement with the book. Your presentation was thoughtful, clear, and generous throughout. I'm excited to follow the rest of your series!
Reposted by Eddy Keming Chen
5. Andrews, Mel (2023) The Devil in the Data: Machine Learning & the Theory-Free Ideal
March 10, 2025 at 4:03 PM
5. Andrews, Mel (2023) The Devil in the Data: Machine Learning & the Theory-Free Ideal
Reposted by Eddy Keming Chen
3. Brown, Matthew J. (2020) Science and Moral Imagination: A New Ideal for Values in Science. Science, Values, and the Public.
4. Ardourel, Vincent and Bangu, Sorin (2023) Finite-size scaling theory: Quantitative and qualitative approaches to critical phenomena.
4. Ardourel, Vincent and Bangu, Sorin (2023) Finite-size scaling theory: Quantitative and qualitative approaches to critical phenomena.
March 10, 2025 at 4:03 PM
3. Brown, Matthew J. (2020) Science and Moral Imagination: A New Ideal for Values in Science. Science, Values, and the Public.
4. Ardourel, Vincent and Bangu, Sorin (2023) Finite-size scaling theory: Quantitative and qualitative approaches to critical phenomena.
4. Ardourel, Vincent and Bangu, Sorin (2023) Finite-size scaling theory: Quantitative and qualitative approaches to critical phenomena.
It is a surprising result that challenges our conventional intuitions regarding state distinguishability. Finally, I discuss potential connections to the PBR theorem and quantum tomography.
March 22, 2025 at 10:18 PM
It is a surprising result that challenges our conventional intuitions regarding state distinguishability. Finally, I discuss potential connections to the PBR theorem and quantum tomography.
In the second part, drawing on joint work with Roderich Tumulka (arxiv.org/abs/2410.16860), I show that typical quantum states in any high-dimensional Hilbert space are observationally indistinguishable from the normalized projection (a mixed state) and from each other.
Typical Quantum States of the Universe are Observationally Indistinguishable
This paper is about the epistemology of quantum theory. We establish a new result about a limitation to knowledge of its central object -- the quantum state of the universe. We show that, if the unive...
arxiv.org
March 22, 2025 at 10:18 PM
In the second part, drawing on joint work with Roderich Tumulka (arxiv.org/abs/2410.16860), I show that typical quantum states in any high-dimensional Hilbert space are observationally indistinguishable from the normalized projection (a mixed state) and from each other.
Title: Density Matrix Realism
Abstract: I first define and clarify Density Matrix Realism—the view that the universe’s quantum state is best understood as an objective density matrix, which may be a mixed state, rather than as a pure wave function (arxiv.org/abs/2405.01025).
Abstract: I first define and clarify Density Matrix Realism—the view that the universe’s quantum state is best understood as an objective density matrix, which may be a mixed state, rather than as a pure wave function (arxiv.org/abs/2405.01025).
Density Matrix Realism
Realism about quantum theory naturally leads to realism about the quantum state of the universe. It leaves open whether it is a pure state represented by a wave function, or an impure (mixed) one repr...
arxiv.org
March 22, 2025 at 10:18 PM
Title: Density Matrix Realism
Abstract: I first define and clarify Density Matrix Realism—the view that the universe’s quantum state is best understood as an objective density matrix, which may be a mixed state, rather than as a pure wave function (arxiv.org/abs/2405.01025).
Abstract: I first define and clarify Density Matrix Realism—the view that the universe’s quantum state is best understood as an objective density matrix, which may be a mixed state, rather than as a pure wave function (arxiv.org/abs/2405.01025).
Big thanks to Snow Xueyin Zhang, Verónica Gómez Sánchez, and Ezra Rubenstein for the kind invitations and for showing me the famous Tarski Room!
March 17, 2025 at 9:48 PM
Big thanks to Snow Xueyin Zhang, Verónica Gómez Sánchez, and Ezra Rubenstein for the kind invitations and for showing me the famous Tarski Room!