If you are aware of an interesting new academic paper (that has been published in a peer-reviewed journal or has appeared on the arXiv), a conference talk (at an official professional scientific meeting), an external blog post (by a professional scientist) or a news item (in the mainstream news media), which you think might make an interesting topic for an FQXi blog post, then please contact us at forums@fqxi.org with a link to the original source and a sentence about why you think that the work is worthy of discussion. Please note that we receive many such suggestions and while we endeavour to respond to them, we may not be able to reply to all suggestions.
Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.
You may also view a list of all blog entries.
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Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.
You may also view a list of all blog entries.
RSS feed | RSS help
RECENT FORUM POSTS
Georgina Woodward: "Be careful, there are many people who are not who they pretend to be." in Global Collaboration
Georgina Woodward: "The preceding explanation of wavefunction collapse is, I think,..." in Consciousness and the...
jim hughes: "I'm not a mathematician. So what I see here is some smart people who..." in Consciousness and the...
Steve Dufourny: "Hello FQXi, the members and all, I try to do my best to unite and convice..." in Global Collaboration
Georgina Woodward: "Broken machine: What do[es] I see next? The I that was, E.I, has not been..." in The Room in the Elephant:...
Lorraine Ford: "Hi Stefan, I hope that a good leader, and a good political party, is..." in The Present State of...
Lorraine Ford: "We live in an age of computing. But physics, mathematics and philosophy,..." in The Present State of...
Georgina Woodward: "I've copied the comment to the thread where it belongs. This orphan can be..." in The Room in the Elephant:...
RECENT ARTICLES
click titles to read articles
Good Vibrations
Microbead 'motor' exploits natural fluctuations for power.
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New photon experiment gives new meta-framework, 'constructor theory,' a boost.
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Experiments seek to use quantum observations as fuel to power mini motors.
The Quantum Clock-Maker Investigating COVID-19, Causality, and the Trouble with AI
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.
Connect the Quantum Dots for a New Kind of Fuel
'Artificial atoms' allow physicists to manipulate individual electrons—and could help to reduce energy wastage in electronic devices.
Georgina Woodward: "Be careful, there are many people who are not who they pretend to be." in Global Collaboration
Georgina Woodward: "The preceding explanation of wavefunction collapse is, I think,..." in Consciousness and the...
jim hughes: "I'm not a mathematician. So what I see here is some smart people who..." in Consciousness and the...
Steve Dufourny: "Hello FQXi, the members and all, I try to do my best to unite and convice..." in Global Collaboration
Georgina Woodward: "Broken machine: What do[es] I see next? The I that was, E.I, has not been..." in The Room in the Elephant:...
Lorraine Ford: "Hi Stefan, I hope that a good leader, and a good political party, is..." in The Present State of...
Lorraine Ford: "We live in an age of computing. But physics, mathematics and philosophy,..." in The Present State of...
Georgina Woodward: "I've copied the comment to the thread where it belongs. This orphan can be..." in The Room in the Elephant:...
RECENT ARTICLES
click titles to read articles
Good Vibrations
Microbead 'motor' exploits natural fluctuations for power.
Reconstructing Physics
New photon experiment gives new meta-framework, 'constructor theory,' a boost.
The Quantum Engineer: Q&A with Alexia Auffèves
Experiments seek to use quantum observations as fuel to power mini motors.
The Quantum Clock-Maker Investigating COVID-19, Causality, and the Trouble with AI
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.
Connect the Quantum Dots for a New Kind of Fuel
'Artificial atoms' allow physicists to manipulate individual electrons—and could help to reduce energy wastage in electronic devices.
FQXi BLOGS
September 29, 2021
New Blog Entries
The universe as a quantum many-body system by Daniele Oriti
By DANIELE ORITI • Sep. 21, 2021 @ 21:35 GMT
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 structures. In some of them, the fundamental quantum entities admit (in some approximation) a simplicial geometric description and can be mapped to generalized tensor networks. This allows also for a primitive entanglement/geometry correspondence. I summarize this formulation of the universe as a quantum many-body system, these immediate consequences as well as more recent results about holographic behavior. Then, I suggest possible lines of further developments from this perspective. Finally, I discuss how the hydrodynamic description of the same system, treated as a quantum fluid, can be given a cosmological interpretation and present a number of recent results about the resulting effective cosmological dynamics, including the replacement of the big bang singularity with a quantum bounce and a late-time accelerated behavior reproducing a phantom-like dark energy from pure quantum gravity origin.
Keywords: #quantum #gravity
1 comment | view comments
Relationship between no-fine-tuning and Bell-KS inequalities by Eric G Cavalcanti
By ERIC G. CAVALCANTI • Sep. 21, 2021 @ 21:30 GMT
Talk given at QCQMB workshop in May 2021
Keywords: #quantum #nonlocality #Bell #foundations
0 comments
Views, variety and the quantum by Lee Smolin
By LEE SMOLIN • Sep. 21, 2021 @ 21:28 GMT
International Conference on Advances in Pilot Wave Theory & HQA-2021
26-30 July 2021, online
Lee Smolin (Perimeter Institute for Theoretical Physics, Canada)
"Views, variety and the quantum"
Keywords: #consciousness #quantum #views
1 comment | view comments
On the repeatable use of quantum resources in thermodynamics by Markus Müller
By MARKUS P MUELLER • Sep. 21, 2021 @ 20:09 GMT
Online NITheP Workshop Quantum Thermodynamics
(23-27 November 2020)
26 November 2020
Markus P. Muller
(Institute for Quantum Optics and Quantum Information, Vienna)
On the repeatable use of quantum resources in thermodynamics
Keywords: #quantum #thermodynamics #resources
0 comments
Topological Quantum Error Correction: From Theoretical Concepts to Experiments by Markus Müller
By MARKUS P MUELLER • Sep. 21, 2021 @ 20:07 GMT
Seminar presented by Markus Müller on the 29th of April, 2021, within the IFIMAC+ICMM Seminar Series.
Keywords: #quantum #error #correction #information
0 comments
Recent Blog Entries
The Room in the Elephant: From Undecidability as...
By MARKUS P MUELLER
Talk by Markus Müller (Institute for Quantum Optics and Quantum Information)
Mini-Workshop Website: https://harvardfop.jacobbarandes.com/...
YouTube Channel: https://www.youtube.com/channel/UCPRe...
Harvard Foundations of...
September 21st, 2021 | 8 comments | view blog entry & comments
Consciousness and the Collapse of the Wave...
By DAVID CHALMERS
Talk by David Chalmers (New York University), Kelvin McQueen (Chapman University)
Mini-Workshop Website: https://harvardfop.jacobbarandes.com/...
YouTube Channel: https://www.youtube.com/channel/UCPRe...
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September 21st, 2021 | 6 comments | view blog entry & comments
Quantum heat transport by microwave photons by...
By JUKKA PEKOLA
Recorded as part of the Transport and Efficient Energy Conversion in Quantum Systems Conference at KITP.
Several communities of experimental and theoretical physics are devoted to studying the problem of transport and energy...
September 21st, 2021 | -1 comments | view blog entry & comments
The Thermodynamics of Clocks by Gerard Milburn
By GERARD JAMES MILBURN
All clocks, periodic and non-periodic, are open dissipative systems driven from thermal equilibrium so that the Helmholtz free energy is increased. In this talk Gerard Milburn discusses the thermodynamic constraints for classical and quantum clocks....
September 21st, 2021 | -1 comments | view blog entry & comments
Quantum impulse control by Christopher Jarzynski
By CHRISTOPHER JARZYNSKI
Recorded as part of the Transport and Efficient Energy Conversion in Quantum Systems Conference at KITP.
Keywords: #iaf #quantum #devices #control
September 21st, 2021 | -1 comments | view blog entry & comments
Energy Gaps and Quantum Devices in Twisted...
By KLAUS ENSSLIN
Talk from the Center for Integrated Quantum Materials.
Keywords: #iaf #quantum #devices #graphene
September 21st, 2021 | -1 comments | view blog entry & comments
Object-based vs Relation-based Ontologies in the...
By ALEXIA AUFFEVES
Alexia Auffèves (Institut Néel) - Object-based vs Relation-based Ontologies in the Quantum World; or, Relational Quantum Mechanics vs Contextual Objectivity
Friday, 25th June 2021
Keywords: #iaf #quantum ...
September 21st, 2021 | -1 comments | view blog entry & comments
Out of equilibrium quantum systems by Jorg...
By JöRG SCHMIEDMAYER
ICAP - Out of equilibrium quantum systems, higher-order correlations and what we can learn about the solution for many body problems from experiments
Keywords: #iaf #experimental #quantum #thermodynamics
September 21st, 2021 | -1 comments | view blog entry & comments
What atomtronics experiments teach us about many...
By JöRG SCHMIEDMAYER
Jörg Schmiedmayer - Technological University of Wien
Talk Topic: What atomtronics experiments teach us about many body physics and what this means for integrated matter wave circuits
Keywords: #iaf #quantum ...
September 21st, 2021 | -1 comments | view blog entry & comments
By ANONYMOUS
January 1st, 1970 | -2 comments | view blog entry & comments