Search FQXi


BREAKING NEWS



Firewalls in Sci Am and FQXi Podcast
Mar 17, 2015
Firewalls on the cover of April's Scientific American. Just in time for our coverage on the March edition of the FQXi Podcast.

Trick or Truth? 2015 Essay Contest
Dec 16, 2014
FQXi launches the next Essay Contest, on the mysterious link between physics and math. Enter by March 4. Good luck and writing!

"Show Me the Physics!" Video Contest Winners
Dec 4, 2014
FQXi announces winners to "Show Me the Physics" Video Contest. Watch the announcement and Q&A with top winners here.

 

Featured Videos:

"Seeing Without Looking"

Dagomir Kaszlikowski

"One Physics To Rule Them All (This Is Physics, part 1)"

Marc Séguin

"Why Do I Study Physics?"

Xiangjun Shi




NEW IN BLOGS

Trick or Truth? — Essay Contest 2015
By BRENDAN FOSTER
Physics and mathematics -- It seems impossible to imagine the history of either one without the other. For gravity theory alone, we see so many examples of this -- from Newton creating calculus, to Einstein mining differential geometry.

But...

How Should Humanity Steer the Future?
By BRENDAN FOSTER
Greetings all -- Just a quick announcement to say our current essay contest -- How Should Humanity Steer the Future? -- is closed for entries as of now. We are currently reviewing all the great entries that arrived in the past few days, so expect to...

Collapsing Physics, Celebrating Ghirardi
By ZEEYA MERALI
Yesterday afternoon at the quantum foundations meeting in Erice (supported by COST) we celebrated the 80th birthday (somewhat in advance) of GianCarlo Ghirardi who famously worked on collapse models, in an attempt to deal with the quantum measurement...




NEW PODCAST EPISODES
Physics poetry; curving spacetime in the lab; & searching for undecidable problems.
Bohmian Rhapsody: Physicists Shelly Goldstein and Jean Bricmont discuss features of the deterministic alternative to standard quantum mechanics proposed by David Bohm. From the Quantum Foundations meeting in Erice, Italy, supported by COST.
Physicists Angelo Bassi and GianCarlo Ghirardi discuss collapse models. From the COST quantum foundations meeting in Erice, Italy.



FEATURED FQXi MEMBER VIDEOS

video Where Do the Laws of Nature Come From?
- Steven Weinberg
video Why is Quantum Gravity Key?
- Lisa Randall
video Is Life and Mind Inevitable in the Universe?
- Andrei Linde




FORUM UPDATES

Complexity
The Fermi Paradox
By WILLIAM OREM
I'd be interested in hearing any proposed solutions to the Fermi Paradox. My experience has been that this is one of the Foundational Questions on which everyone you meet at a party has a ready answer, but the paradox turns out to be surprisingly...

Ultimate Reality
Limits of mathematics in cosmology
By BRENDAN FOSTER
By special request, this forum is opened and dedicated to discussion of the limits or not of mathematics when applied to cosmology.

Ultimate Reality
Alternative Models of Reality
By ZEEYA MERALI
If you have an unconventional, alternative model of reality, then this is the place to discuss it. (This is for contributors who have preliminary ideas and would like feedback, but do not have an academic paper or arXiv preprint and have not given a...

 
NEW ARTICLES


The Quantum Thermodynamic Revolution
By COLIN STUART • May 20, 2015
Combining theories of quantum information with the science of heat and energy transfer could lead to new technologies.
Read article
Discuss this article in the FQXi Community Forum (7 posts)

Face Off: Building a Toy Universe to Pit Quantum Theory Against Gravity
By NICOLA JONES • Apr 24, 2015
Using superconducting circuits to create a curved-spacetime analog with stronger gravity than our cosmos.
Read article
Discuss this article in the FQXi Community Forum (4 posts)

Is Gravity Time's Archer?
By KATE BECKER • Mar 24, 2015
A new model argues the forces between particles in the early universe loosed time's arrow, creating temporal order from chaos.
Read article
Discuss this article in the FQXi Community Forum (9 posts)

Purifying Physics: The Quest to Explain Why the “Quantum” Exists
By ANIL ANANTHASWAMY • Feb 9, 2015
A new framework for the laws underlying reality could explain why nature obeys quantum rules, the origin of time’s arrow, and the power of quantum computing.
Read article
Discuss this article in the FQXi Community Forum (18 posts)

Searching for the Impossible
By SOPHIE HEBDEN • Jan 16, 2015
A quest to discover which computational tasks can never be resolved.
Read article
Discuss this article in the FQXi Community Forum (19 posts)

Six Degrees to the Emergence of Reality
By CARINNE PIEKEMA • Jan 1, 2015
Physicists are racing to complete a new model of "quantum complex networks" that tackles the physical nature of time and paradoxical features of emergence of classical reality from the quantum world
Read article
Discuss this article in the FQXi Community Forum (35 posts)

Quantum in Context
By NICOLA JONES • Dec 13, 2014
An untapped resource could provide the magic needed for quantum computation—and perhaps even open the door to time travel.
Read article
Discuss this article in the FQXi Community Forum (3 posts)

Spot the Difference to Reveal Exotic Particles
By COLIN STUART • Oct 30, 2014
Questioning the symmetrization postulate of quantum mechanics and the notion that electrons are indistinguishable could reveal whether hypothetical new particles exist.
Read article
Discuss this article in the FQXi Community Forum (6 posts)

Life's Quantum Crystal Ball
By CARINNE PIEKEMA • Oct 9, 2014
Does the ability to predict the future—perhaps with quantum help—define the fundamental difference between living and inanimate matter?
Read article
Discuss this article in the FQXi Community Forum (15 posts)

The Quantum Truth Seeker
By NICOLA JONES • Sep 19, 2014
Watching particles fly through an interferometer might help to unveil higher-order weirdness behind quantum theory.
Read article
Discuss this article in the FQXi Community Forum (11 posts)

Quantifying Occam
By SOPHIE HEBDEN • Aug 17, 2014
Is the simplest answer always the best? Connecting Medieval monks to computational complexity, using the branch of mathematics known as category theory.
Read article
Discuss this article in the FQXi Community Forum (4 posts)

Heart of Darkness
By ANIL ANANTHASWAMY • Jul 23, 2014
An intrepid physicist attempts to climb into the core of black hole.
Read article
Discuss this article in the FQXi Community Forum (3 posts)

Why Quantum?
By COLIN STUART • Jun 17, 2014
Entropy could explain why nature chose to play by quantum rules.
Read article
Discuss this article in the FQXi Community Forum (1116 posts)

Q&A with Paul Davies: What is Time?
By JOHN STEELE • Feb 16, 2014
Where does time come from? Why does it seem to flow?
Read article
Discuss this article in the FQXi Community Forum (218 posts)

Q&A with David Rideout: Testing Reality in Space
By COLIN STUART • Sep 19, 2013
Satellite experiments could soon investigate the boundaries of quantum physics and relativity.
Read article
Discuss this article in the FQXi Community Forum (141 posts)

Readers' Choice: Cheating the Causal Game
By SOPHIE HEBDEN • Jun 24, 2013
A new quantum framework that blurs cause-and-effect at a fundamental level could improve information processing and lead to a theory of quantum gravity.
Read article
Discuss this article in the FQXi Community Forum (191 posts)

The Accidental Universe
By BOB SWARUP • Jan 8, 2013
Have we been fooled into seeing one form of reality, with particular fundamental forces and laws, based on the peculiar way that we have chosen to measure time?
Read article
Discuss this article in the FQXi Community Forum (659 posts)


 
Please enter your e-mail address:

And select the letter between 'K' and 'M':


Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.