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Showing posts with label Long Now. Show all posts
Showing posts with label Long Now. Show all posts

Sunday, August 01, 2021

Google Makes a Time Crystal

 Idea is new to me, but reminded me of some 'forever clock' ideas that were brought up in the 80s with the 'Long Now' effort.  See the tag.   Is this at all related?    Do you 'evade the second law of thermodynamics"?  and make it go the way of action at a distance?

Eternal Change for No Energy: A Time Crystal Finally Made Real  In QuantaMagazine.

Like a perpetual motion machine, a time crystal forever cycles between states without consuming energy. Physicists claim to have built this new phase of matter inside a quantum computer.

In a preprint posted online Thursday night    , researchers at Google in collaboration with physicists at Stanford, Princeton and other universities say that they have used Google’s quantum computer to demonstrate a genuine “time crystal.” In addition, a separate research group claimed earlier this month to have created a time crystal in a diamond.

A novel phase of matter that physicists have strived to realize for many years, a time crystal is an object whose parts move in a regular, repeating cycle, sustaining this constant change without burning any energy.

“The consequence is amazing: You evade the second law of thermodynamics,” said Roderich Moessner, director of the Max Planck Institute for the Physics of Complex Systems in Dresden, Germany, and a co-author on the Google paper. That’s the law that says disorder always increases.

Time crystals are also the first objects to spontaneously break “time-translation symmetry,” the usual rule that a stable object will remain the same throughout time. A time crystal is both stable and ever-changing, with special moments that come at periodic intervals in time.

The time crystal is a new category of phases of matter, expanding the definition of what a phase is. All other known phases, like water or ice, are in thermal equilibrium: Their constituent atoms have settled into the state with the lowest energy permitted by the ambient temperature, and their properties don’t change with time. The time crystal is the first “out-of-equilibrium” phase: It has order and perfect stability despite being in an excited and evolving state.

“This is just this completely new and exciting space that we’re working in now,” said Vedika Khemani, a condensed matter physicist now at Stanford who co-discovered the novel phase while she was a graduate student and co-authored the new paper with the Google team.

Khemani, Moessner, Shivaji Sondhi of Princeton and Achilleas Lazarides of Loughborough University in the United Kingdom discovered the possibility of the phase and described its key properties in 2015; a rival group of physicists led by Chetan Nayak of Microsoft Station Q and the University of California, Santa Barbara identified it as a time crystal soon after.

Researchers have raced to create a time crystal over the past five years, but previous demos, though successful on their own terms, have failed to satisfy all the criteria needed to establish the time crystal’s existence. “There are good reasons to think that none of those experiments completely succeeded, and a quantum computer like [Google’s] would be particularly well placed to do much better than those earlier experiments,” said John Chalker, a condensed matter physicist at the University of Oxford who wasn’t involved in the new work.

The cryostat used to hold Google’s quantum processors.

Google

Google’s quantum computing team made headlines in 2019 when they performed the first-ever computation that ordinary computers weren’t thought to be able to do in a practical amount of time. Yet that task was contrived to show a speedup and was of no inherent interest. The new time crystal demo marks one of the first times a quantum computer has found gainful employment.  ... '

Thursday, April 25, 2019

Institutions that last Ten Thousand Years

We had early interaction with some of the founders of the Long Now Foundation, which was very thought provoking.   Here an interview with its Exec Director in the Edge:

How to Create an Institution That Lasts 10,000 Years
A Conversation with Alexander Rose

We’re also looking at the oldest living companies in the world, most of which are service-based. There are some family-run hotels and things like that, but also a huge amount in the food and beverage industry. Probably a third of the organizations or the companies over 500 or 1,000 years old are all in some way in wine, beer, or sake production. I was intrigued by that crossover.

What’s interesting is that humanity figured out how to ferment things about 10,000 years ago, which is exactly the time frame where people started creating cities and agriculture. It’s unclear if civilization started because we could ferment things, or we started fermenting things and therefore civilization started, but there’s clearly this intertwined link with fermenting beer, wine, and then much later spirits, and how that fits in with hospitality and places that people gather.

All of these things are right now just nascent bits and pieces of trying to figure out some of the ways in which organizations live for a very long time. While some of them, like being a family-run hotel, may not be very portable as an idea, some of them, like some of the natural strategies, we're just starting to understand how they can be of service to humanity. If we broaden the idea of service industry to our customer civilization, how can you make an institution whose customer is civilization and can last for a very long time?

ALEXANDER ROSE is the executive director of The Long Now Foundation, manager of the 10,000 Year Clock Project, and curator of the speaking series' at The Interval and The Battery SF.  ... " 

Saturday, March 31, 2018

Long Now Meets Land Art

Some long ago encounters and conversations with folks that founded the Long Now Foundation reminded me again of Art in desert spaces.   See also their recent advances in clock technology.   Long term thinking is very rare, and should be appreciated.

The Long Now Foundation
Fostering long-term thinking through projects like the 10,000 year clock; Rosetta Disk; Revive & Restore; Seminars, videos, podcast ... 

James Turrell, Earthworks, and Monuments of Deep Time    A History of Land Art in the American West .... "

Tuesday, February 20, 2018

Work on 1000 Year Clock Begins

Also known as the most famous part of the Long Now Project.  About long term thinking.  Followed it closely in its early days via our work with the Institute for the Future.

Jeff Bezos writes:

@JeffBezos
Installation has begun—500 ft tall, all mechanical, powered by day/night thermal cycles, synchronized at solar noon, a symbol for long-term thinking—the #10000YearClock is coming together thx to the genius of Danny Hillis, Zander Rose & the whole Clock team! Enjoy the video.

Tweet and Video. 
Clock Details and more video:

" ... The full scale 10,000 Year Clock is now under construction. While there is no completion date scheduled, we do plan to open it to the public once it is ready. The essay below by Long Now board member Kevin Kelly discusses what we hope the Clock will be once complete. This is one of several projects by Long Now to foster long-term thinking in the context of the next 10,000 years.

Clock in the Mountain   by Kevin Kelly

There is a Clock ringing deep inside a mountain. It is a huge Clock, hundreds of feet tall, designed to tick for 10,000 years. Every once in a while the bells of this buried Clock play a melody. Each time the chimes ring, it’s a melody the Clock has never played before. The Clock’s chimes have been programmed to not repeat themselves for 10,000 years. Most times the Clock rings when a visitor has wound it, but the Clock hoards energy from a different source and occasionally it will ring itself when no one is around to hear it. It’s anyone’s guess how many beautiful songs will never be heard over the Clock’s 10 millennial lifespan.

The Clock is real. It is now being built inside a mountain in western Texas. This Clock is the first of many millennial Clocks the designers hope will be built around the world and throughout time. There is a second site for another Clock already purchased at the top of a mountain in eastern Nevada, a site surrounded by a very large grove of 5,000-year-old bristlecone pines. Appropriately, bristlecone pines are among the longest-lived organisms on the planet. The designers of the Clock in Texas expect its chimes will keep ringing twice as long as the oldest 5 millennia-old bristlecone pine. Ten thousand years is about the age of civilization, so a 10K-year Clock would measure out a future of civilization equal to its past. That assumes we are in the middle of whatever journey we are on – an implicit statement of optimism. .... " 

Wednesday, January 17, 2018

Stewart Brand Speaks at Long Now

I was introduced to the Long Now Foundation soon after its inception, and used to mention its efforts often in the predecessor of this blog.  Also Stewart Brand, founder of the Whole Earth Catalog, and The Well, often met with us at the Institute for the Future.  Not much in recent years, but just recently:

Stewart Brand Gives In-Depth and Personal Interview to Tim Ferriss

Tim Ferriss, who wrote the The Four Hour Work Week and gave a Long Now talk on accelerated learning in 02011, recently interviewed Long Now co-founder Stewart Brand on his podcast, “The Tim Ferriss Show”. The interview is wide-ranging, in-depth, and among the most personal Brand has given to date. Over the course of nearly three hours, Brand touches on everything from the Whole Earth Catalog, why he gave up skydiving, how he deals with depression, his early experiences with psychedelics, the influence of Marshall McLuhan and Buckminster Fuller on his thinking, his recent CrossFit regimen, and the ongoing debate between artificial intelligence and intelligence augmentation. He also discusses the ideas and projects of The Long Now Foundation. ... "