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The Quantum Hourglass—How a Quantum Time-keeper...
By MILE GU
This post has been co-written by Mile Gu and Thomas Elliott.

In 2006, Oxford University Press set out to determine the most commonly used nouns in the English language. Topping the list was ‘time,’ closely followed in 3rd and 5th by...

Deferential Geometry
By ANTONY GARRETT LISI
We've had a series of late season storms sweep through Tahoe this past week. Flurries of snow swirl around briefly, then settle and melt in the spring sun. During a break in the clouds today C and I hiked up the fire road behind our house to watch...

Review of “A Big Bang in a Little Room: The...
By IAN DURHAM
In all the talk of the multiverse that gets tossed around these days, there's a subtle but important point that is often lost: there are really two completely different notions of a multiverse. What one thinks of when someone utters the word...

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FQXi Essay Contest - Spring, 2017
Knowledge Base (KB) Access as Fundamental to Info...
By SUE LINGO
Essay Abstract

Which came first, human conceptualization of a Source Emission, or human conceptualization of a Gravity Collapse? Whether discovered of invented, knowledge has no sustainable integrity without a fundamental unit of...

FQXi Essay Contest - Spring, 2017
Is Milgrom’s MOdified Newtonian Dynamics (MOND)...
By DAVID BROWN
Essay Abstract

This essay raises questions concerning what is fundamental in physics. There is a brief discussion of Milgrom’s MOdified Newtonian Mechanics with two possible interpretations: one possible interpretation in terms of...

FQXi Essay Contest - Spring, 2017
The Logical State of What Underlies our Reality by...
By MARCEL-MARIE LEBEL
Essay Abstract

The “fundamental” aspect of something often means its simpler constituents that are not evident or even hidden and that support the more complex emerging part that is readily accessible. With observers and...

 

NEW ARTICLES


Whose Physics Is It Anyway? Q&A with Chanda Prescod-Weinstein
By NICOLA JONES • Apr 20, 2018
Why physics and astronomy communities must take diversity issues seriously in order to do good science.
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Why Time Might Not Be an Illusion
By NICOLA JONES • Feb 28, 2018
Einstein’s relativity pushes physicists towards a picture of the universe as a block, in which the past, present, and future all exist on the same footing; but maybe that shift in thinking has gone too far.
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Discuss this article in the FQXi Community Forum (123 posts)

The Complexity Conundrum
By M. MITCHELL WALDROP • Dec 5, 2017
Resolving the black hole firewall paradox—by calculating what a real astronaut would compute at the black hole's edge.
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Discuss this article in the FQXi Community Forum (36 posts)

Quantum Dream Time
By KATE BECKER • Nov 8, 2017
Defining a ‘quantum clock’ and a 'quantum ruler' could help those attempting to unify physics—and solve the mystery of vanishing time.
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Discuss this article in the FQXi Community Forum (76 posts)

Our Place in the Multiverse
By SOPHIE HEBDEN • Sep 22, 2017
Calculating the odds that intelligent observers arise in parallel universes—and working out what they might see.
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Sounding the Drums to Listen for Gravity’s Effect on Quantum Phenomena
By STEVEN ASHLEY • Aug 8, 2017
A bench-top experiment could test the notion that gravity breaks delicate quantum superpositions.
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Discuss this article in the FQXi Community Forum (132 posts)

Watching the Observers
By BRENDAN FOSTER • Jun 13, 2017
Accounting for quantum fuzziness could help us measure space and time—and the cosmos—more accurately.
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Bohemian Reality: Searching for a Quantum Connection to Consciousness
By COLIN STUART • Mar 24, 2017
Is there are sweet spot where artificial intelligence systems could have the maximum amount of consciousness while retaining powerful quantum properties?
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Discuss this article in the FQXi Community Forum (31 posts)

Quantum Replicants: Should future androids dream of quantum sheep?
By JAYNE THOMPSON • Feb 24, 2017
To build the ultimate artificial mimics of real life systems, we may need to use quantum memory.
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Painting a QBist Picture of Reality
By M. MITCHELL WALDROP • Jan 22, 2017
A radical interpretation of physics makes quantum theory more personal.
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The Spacetime Revolutionary
By COLIN STUART • Dec 13, 2016
Carlo Rovelli describes how black holes may transition to "white holes," according to loop quantum gravity, a radical rewrite of fundamental physics.
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Riding the Rogue Quantum Waves
By STEVEN ASHLEY • Nov 6, 2016
Could giant sea swells help explain how the macroscopic world emerges from the quantum microworld? (Image credit: MIT News)
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Rescuing Reality
By KATE BECKER • Oct 5, 2016
A "retrocausal" rewrite of physics, in which influences from the future can affect the past, could solve some quantum quandaries—saving Einstein's view of reality along the way.
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Untangling Quantum Causation
By NICOLA JONES • Jul 25, 2016
Figuring out if A causes B should help to write the rulebook for quantum physics.
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Discuss this article in the FQXi Community Forum (72 posts)