Search FQXi


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.

Contests Home

Current Essay Contest


Previous Contests

Undecidability, Uncomputability, and Unpredictability Essay Contest
December 24, 2019 - April 24, 2020
Contest Partners: Fetzer Franklin Fund, and The Peter and Patricia Gruber Foundation
read/discuss

What Is “Fundamental”
October 28, 2017 to January 22, 2018
Sponsored by the Fetzer Franklin Fund and The Peter & Patricia Gruber Foundation
read/discusswinners

Wandering Towards a Goal
How can mindless mathematical laws give rise to aims and intention?
December 2, 2016 to March 3, 2017
Contest Partner: The Peter and Patricia Gruber Fund.
read/discusswinners

Trick or Truth: The Mysterious Connection Between Physics and Mathematics
Contest Partners: Nanotronics Imaging, The Peter and Patricia Gruber Foundation, and The John Templeton Foundation
Media Partner: Scientific American

read/discusswinners

How Should Humanity Steer the Future?
January 9, 2014 - August 31, 2014
Contest Partners: Jaan Tallinn, The Peter and Patricia Gruber Foundation, The John Templeton Foundation, and Scientific American
read/discusswinners

It From Bit or Bit From It
March 25 - June 28, 2013
Contest Partners: The Gruber Foundation, J. Templeton Foundation, and Scientific American
read/discusswinners

Questioning the Foundations
Which of Our Basic Physical Assumptions Are Wrong?
May 24 - August 31, 2012
Contest Partners: The Peter and Patricia Gruber Foundation, SubMeta, and Scientific American
read/discusswinners

Is Reality Digital or Analog?
November 2010 - February 2011
Contest Partners: The Peter and Patricia Gruber Foundation and Scientific American
read/discusswinners

What's Ultimately Possible in Physics?
May - October 2009
Contest Partners: Astrid and Bruce McWilliams
read/discusswinners

The Nature of Time
August - December 2008
read/discusswinners

Forum Home
Introduction
Terms of Use

Order posts by:
 chronological order
 most recent first

Posts by the author are highlighted in orange; posts by FQXi Members are highlighted in blue.

By using the FQXi Forum, you acknowledge reading and agree to abide by the Terms of Use

 RSS feed | RSS help
RECENT POSTS IN THIS TOPIC

Peter Leifer: on 12/28/08 at 18:46pm UTC, wrote Dear Cristi, thanks for reply. In order to reach smooth QM as you wish we...

Cristi Stoica: on 12/28/08 at 9:49am UTC, wrote Dear Dr. Leifer, I agree with you that the idea of recovering the...

Peter Leifer: on 11/28/08 at 9:31am UTC, wrote Essay Abstract New construction of $4D$ dynamical space-time (DST)...


RECENT FORUM POSTS

Georgina Woodward: "I think i have experienced some aspects of my foetal neuro-biological ..." in Searching for Physical...

Jason Wolfe: "Georgina, The spirit is fully integrated into the biochemistry of the..." in Searching for Physical...

Jason Wolfe: "Many years ago, I learned a difficult truth to practice. I learned that..." in The Nature of Time

Jason Wolfe: "The speed of light is both a clock and a ruler. Speed of light c=..." in The Nature of Time

Zeeya Merali: "You're invited to a special free film screening and panel discussion event,..." in Film Screening: "Infinite...

jim hughes: "I'm not a mathematician, so the math part is mostly lost on me. And I'm..." in Structure Invention by...

Charles Harrow: "The AI only works really well in the "comfort zone", i.e. under test..." in Is Causality Fundamental?

Jason Wolfe: "In all honesty, I'm not even sure what intelligent and educated people..." in Generalised Integrated...


RECENT ARTICLES
click titles to read articles

Lockdown Lab Life
Grounded physicists are exploring the use of online and virtual-reality conferencing, and AI-controlled experiments, to maintain social distancing. Post-pandemic, these positive innovations could make science more accessible and environmentally-friendly.

Is Causality Fundamental?
Untangling how the human perception of cause-and-effect might arise from quantum physics, may help us understand the limits and the potential of AI.

Building Agency in the Biology Lab
Physicists are using optogenetics techniques to make a rudimentary agent, from cellular components, which can convert measurements into actions using light.

Think Quantum to Build Better AI
Investigating how quantum memory storage could aid machine learning and how quantum interactions with the environment may have played a role in evolution.

Outside the Box
A proposed quantum set-up that could predict your game-playing strategy resurrects Newcomb’s classic quiz show paradox.


FQXi FORUM
July 16, 2020

CATEGORY: The Nature of Time Essay Contest (2008) [back]
TOPIC: Morphogenesis and dynamics of quantum state by Peter Leifer [refresh]
Bookmark and Share
Login or create account to post reply or comment.

Peter Leifer wrote on Nov. 28, 2008 @ 09:31 GMT
Essay Abstract

New construction of $4D$ dynamical space-time (DST) has been proposed in the framework of unification of relativity and quantum theory. Such unification is based solely on the fundamental notion of generalized coherent state (GCS) of N-level system and the geometry of unitary group $SU(N)$ acting in state space $C^N$. Neither contradictable notion of quantum particle, nor space-time coordinates (that cannot be a priori attached to nothing) are used in this construction. Morphogenesis of the ``field shell"-lump of GCS and its dynamics have been studied for $N=2$ in DST. The main technical problem is to find non-Abelian gauge field arising from conservation law of the local Hailtonian vector field. The last one may be expressed as parallel transport of local Hamiltonian in projective Hilbert space $CP(N-1)$. Co-movable local ``Lorentz frame" being attached to GCS is used for qubit encoding result of comparison of the parallel transported local Hamiltonian in infinitesimally close points. This leads to quasi-linear relativistic field equations with soliton-like solutions for ``field shell" in emerged DST. The terms ``comparison" and ``encoding" resemble human's procedure, but here they have objective content realized in invariant quantum dynamics. The dynamical motion of the lump in DST may be associated with ``kinesis" time whereas the evolution parameter describing morphogenesis of GCS evolving in $CP(N-1)$, may be naturally identified with ``metabole" time.

Author Bio

Peter Leifer, theoretical physicist, was born January 8, 1949, Pavlograd, Ukraine. M.Sc. in mathematics, 1974, Simferopol State University, Crimea, Ukraine. Senior scientific researcher, 1981-1992, Simferopol State University, Crimea, Ukraine. Ph.D. in physics & mathematics, 1990, Physics-Engineering Institution for Low Temperatures, Academy of Science, Kharkov, Ukraine. Emigration to Israel, August 1992. Researcher of Institute for Advanced Studies at Tel-Aviv University 1993-1997. Physicist in high-tech companies 1998-2001. Associate professor, Crimea State Engineering University, Simferopol, Ukraine, 2002-2006. Sabbatical visitant at Bar-Ilan University, Israel, 2005-2006. Physicist, Hermon Laboratories, 2007-present.

Download Essay PDF File

Bookmark and Share


Cristi Stoica wrote on Dec. 28, 2008 @ 09:49 GMT
Dear Dr. Leifer,

I agree with you that the idea of recovering the spacetime from the projective Hilbert space by projection is a promising approach for unifying relativity and QM, and I enjoyed also other interesting ideas of your essay.

Best wishes,

Cristi Stoica

Bookmark and Share


Peter Leifer wrote on Dec. 28, 2008 @ 18:46 GMT
Dear Cristi, thanks for reply. In order to reach smooth QM

as you wish we need dramatically change formal apparatus together with physical revision of foundation of QM. Unfortujately it is impossible without revision of space-time status and structure.

Best regards,

Peter

Bookmark and Share


Login or create account to post reply or comment.

Please enter your e-mail address:
Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.