Celebrating 10 Years of FQXi with Our Most Popular Content From the Past Decade

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BREAKING NEWS



Quantum Properties of Spacetime
May 29, 2020
FQXi's Francesca Vidotto talks in-depth to JSTOR Daily about feminist epistemology, white holes, string theory, and her book (with Carlo Rovelli) on loop quantum gravity.

Gravity Winners
May 29, 2020
The winners of the Gravity Research Foundation essay contest have been announced. Congrats to our members who have won prizes: Eduardo Guendelman (for "Lorentzian Quintessential Inflation" with David Benisty), Craig Hogan (for "Cosmological Constant in Coherent Quantum Gravity"), Thanu Padmanabhan (for "Principle of Equivalence at Planck Scales and the Zero-Point-Length of Spacetime"), and Maulik Parikh & Frank Wilczek (first prize for "The Noise of Gravitons" with George Zhariade).

INSPYRE!
Mar 23, 2020
FQXi is proud to support INSPYRE 2020, “The Hitchhiker’s Guide to the…Universe’”, which is dedicated to the hottest topics from particle physics to cosmology. This year lectures (in English) are online from 30th March to 3rd April. Open to all, especially students & teachers! The course is organised by FQXi's Catalina Oana Curceanu, senior researcher at the National Laboratory of Frascati (LNF), and you can read more here.



 
NEW IN BLOGS

The Quantum Identity Crisis
By GEORGE MUSSER
John Locke imagined a prince who finds himself inside a cobbler's body. René Descartes worried the world you experience might be a hallucination created by a malicious demon. Thomas Reid mused that a mind might be copied into "two or twenty...

MCQST2021 | The universe as a quantum many-body...
By JOSH HOFFMAN
The universe as a quantum many-body system

Speaker: Daniele Oriti | LMU München & MCQST



Abstract

Several approaches to quantum gravity suggest that spacetime and geometry are emergent from non-spatiotemporal quantum...

Mindscape 149 | Lee Smolin on Time, Philosophy,...
By LEE SMOLIN
The challenge to a theoretical physicist pushing beyond our best current theories is that there are too many ways to go. What parts of the existing paradigm do you keep, which do you discard, and why make those choices? Among today’s theorists, Lee...




NEW PODCAST EPISODES
Constructor Theory and Irreversibility: A conversation with Chiara Marletto and Vlatko Vedral on a novel unification between information theory and thermodynamics and their recent experiment that tested, and corroborated, the constructor theoretic notion of irreversibility. With Logan Chipkin.
Eerie quantum Aharanov-Bohm effect demonstrated for gravity; mysteries about the nature of time; how choices can curve spacetime; and the Science of Can and Can't.
2021: The Year in Physics Review Part 3. FQXi's annual countdown of the physics highlights concludes, with quantum physicist Ian Durham.



Most Recent:

"MCQST2021 | The universe as a quantum many-body system (Daniele Oriti)"

Daniele Oriti

"The stochastic thermodynamics of computation David Wolpert Santa Fe Institute"

David Wolpert

"Webinário Física Quântica - Energy quantum helps - Prof. Gerardo Adesso University of Nottingham, UK"

Gerardo Adesso




FORUM UPDATES

Ultimate Reality
Global Collaboration
By STEVE DUFOURNY
Dear FQXi , I love your platform like you know it, I work my theory and have improved a lot here and on arxiv and in the books, it is important for me but not like the Project, international, universal that I work about.

I create a group of...

Ultimate Reality
The Present State of Physics, Mathematics, and...
By JOE SCHINDLER
This forum will be an appropriate place to discuss the present state of physics, mathematics, and science, as well as for general discussion tangential to these issues.

While the topic of allowed discussion is broad, please make sure all posts...

High Energy Physics
The Noise of Gravitons
By ZEEYA MERALI
The Gravity Research Foundation recently announced the winners of its 2020 essay contest.

Thank you to Steve Agnew for suggesting that we open a thread to discuss the first-prize-winning essay: "The Noise of Gravitons" by FQXi members Maulikh...

 
NEW ARTICLES


The Math of Consciousness: Q&A with Kobi Kremnitzer
By COLIN STUART • Mar 29, 2022
A meditating mathematician is developing a theory of conscious experience to help understand the boundary between the quantum and classical world.
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Discuss this article in the FQXi Community Forum (24 posts)

Can We Feel What It’s Like to Be Quantum?
By BRENDAN FOSTER • Mar 27, 2022
Underground experiments in the heart of the Italian mountains are testing the links between consciousness and collapse theories of quantum physics.
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Discuss this article in the FQXi Community Forum (2 posts)

The Thermodynamic Limits of Intelligence: Q&A with David Wolpert
By MIRIAM FRANKEL • Mar 25, 2022
Calculating the energy needed to acquire and compute information could help explain the (in)efficiency of human brains and guide the search for extra-terrestrial intelligence.
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Discuss this article in the FQXi Community Forum (1 post)

Gambling Against the Second Law
By NICOLA JONES • Mar 24, 2022
Using precision thermometry to make mini heat engines, that might, momentarily, bust through the thermodynamic limit.
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Discuss this article in the FQXi Community Forum (0 posts)

Mind and Machine: What Does It Mean to Be Sentient?
By KATE BECKER • Mar 23, 2022
Using neural networks to test definitions of 'autonomy.'
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Discuss this article in the FQXi Community Forum (1 post)

Seeing is Believing
By MIRIAM FRANKEL • Mar 22, 2022
Neuroscientists are testing the idea that what we see when we perceive the world is ultimately an internal projection.
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Discuss this article in the FQXi Community Forum (2 posts)

Dissolving the Self: Q&A with Aviva Berkovich-Ohana
By LOGAN CHIPKIN • Feb 27, 2022
A neurobiologist is mapping the boundaries of consciousness during meditation.
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Discuss this article in the FQXi Community Forum (1 post)

Over Gravity's Rainbow
By ZEEYA MERALI • Feb 27, 2022
An alternative framework of physics, in which light's speed can vary, could render the universe ageless.
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Discuss this article in the FQXi Community Forum (7 posts)

Is the 'Fine-Tuned Universe' an Illusion?
By FOUNDATIONAL QUESTIONS INSTITUTE, FQXI • Feb 7, 2022
New FQXi report re-assesses claims that the cosmos is precisely tuned to foster life, challenging popular arguments for a multiverse.
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Discuss this article in the FQXi Community Forum (0 posts)

Good Vibrations
By COLIN STUART • Sep 27, 2021
Microbead 'motor' exploits natural fluctuations for power.
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Discuss this article in the FQXi Community Forum (4 posts)

Reconstructing Physics
By MIRIAM FRANKEL • Sep 24, 2021
New photon experiment gives new meta-framework, 'constructor theory,' a boost.
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Discuss this article in the FQXi Community Forum (11 posts)

The Quantum Engineer: Q&A with Alexia Auffèves
By MIRIAM FRANKEL • Sep 22, 2021
Experiments seek to use quantum observations as fuel to power mini motors.
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Discuss this article in the FQXi Community Forum (0 posts)

The Quantum Clock-Maker Investigating COVID-19, Causality, and the Trouble with AI
By NICOLA JONES • Jun 23, 2021
Sally Shrapnel, a quantum physicist and medical practitioner, on her experiments into cause-and-effect that could help us understand time’s arrow—and build better healthcare algorithms.
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Discuss this article in the FQXi Community Forum (83 posts)

Connect the Quantum Dots for a New Kind of Fuel
By COLIN STUART • Jun 20, 2021
'Artificial atoms' allow physicists to manipulate individual electrons—and could help to reduce energy wastage in electronic devices.
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Discuss this article in the FQXi Community Forum (1 post)

Can Choices Curve Spacetime?
By SOPHIE HEBDEN • Mar 16, 2021
Two teams are developing ways to detect quantum-gravitational effects in the lab.
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Discuss this article in the FQXi Community Forum (24 posts)


 
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