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(Daily Mail)   ime travel. Quantum experiment proves t   (dailymail.co.uk) divider line
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13519 clicks; posted to Main » and Fandom » on 10 Feb 2015 at 9:03 AM (5 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



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2015-02-10 9:05:25 AM  
5 votes:
As published in the noted scientific journal The Daily Mail.
 
2015-02-10 9:46:34 AM  
4 votes:
So, Daily Mail is science fail, let's see what they're actually blathering on about. Ah, here we go.

PhysNow has a good article: In the Feb. 13 issue of Physical Review Letters, Kater Murch describes a way to narrow the odds. By combining information about a quantum system's evolution after a target time with information about its evolution up to that time, his lab was able to narrow the odds of correctly guessing the state of the two-state system from 50-50 to 90-10.

Basically, this guy takes weak measurements of a qubit, takes a strong measurement but doesn't look at it, then takes weak measurements after the strong measurement, and could predict the results of the strong measurement 90% of the time. It's like a card trick where the magician shuffles the deck, has you draw a card and put it back in the deck without him looking, then shuffles again and says "Is that your card?" Except in this case, the card is the quantum state of a qubit, and the magician is a physicist who gets it right 90% of the time.
Pretty impressive, but nobody's in any danger of violating IATT Bulletin 1147 any time soon.
 
2015-02-10 9:01:18 AM  
4 votes:
i.imgur.comView Full Size
 
2015-02-10 9:15:16 AM  
3 votes:
Scientists probed the quantum mechanical properties of single particles
The particles don't have a fixed state until they are observed by scientist
Study found knowing future outcome of particle also changes initial state
They believe particles change their state due to scientist's knowledge
This suggests that time could runs both backwards and forwards
If this proves true, it could mean that we're doing now has been influenced by the decision made by a future version of us, the study claims

 

I see no reason to believe this was somehow wildly misunderstood or misreported by the Daily Mail.
 
2015-02-10 10:47:23 AM  
2 votes:

rlandrum: James P Hogan wrote about this in the 70's, I think in The Genesis Machine.  Basically, as soon as you send something back in time, all future universes disappear.  This was natures way of preventing paradoxes.  The uncertainty principle still applies, and the altered past may not resemble the future you intend.  A good read.


i586.photobucket.comView Full Size
 
2015-02-10 10:28:12 AM  
2 votes:
timecube.comView Full Size


anomalies.netView Full Size
 
2015-02-10 9:35:41 AM  
2 votes:

physt: It worked!


I'm going to change my user name to physt and then go back in time and post on Fark!!
 
2015-02-10 9:15:44 AM  
2 votes:
hateandanger.files.wordpress.comView Full Size
 
2015-02-10 8:45:51 AM  
2 votes:
ce headline, subby. Ni
 
2015-02-10 2:24:59 PM  
1 vote:
FTAThe quantum state was detected by putting a circuit inside a microwave box.
A few microwave photons - or particles of light - were sent into the box, where their quantum fields interacted with the circuit.
When the photons exited the box they had information about the quantum system.


Photo of the box:
advancedgraphics.comView Full Size
 
2015-02-10 1:56:01 PM  
1 vote:
I don't get it
 
2015-02-10 1:22:22 PM  
1 vote:
we came in?
Isn't this where
 
2015-02-10 12:36:22 PM  
1 vote:
stream1.gifsoup.comView Full Size

To respond to my question from twelve minutes left.
 
2015-02-10 11:51:15 AM  
1 vote:

Cybernetic: Is someone going to post the winning Powerball numbers for tomorrow? I know one of you bastards has them.


4, 7, 19, 32, 33 and the Power ball is √-1
 
2015-02-10 11:24:00 AM  
1 vote:
unrealitymag.bcmediagroup.netdna-cdn.comView Full Size


I understand all this quantum physical time-based atom stuff and state changing shenanigans.
I thought I will watched that film soon. The first time I saw it tomorrow.
 
2015-02-10 10:49:54 AM  
1 vote:
Alert the Chrono-Guard
 
2015-02-10 10:49:33 AM  
1 vote:
IANAQP, but ignoring the Daily Mail hyperbole and focusing on the scant quotes or paraphrasing of quotes from the scientist herself, what I gather is...

Classical World:  You can't find your car keys at 8:00, but find them in the kitchen at 8:15.  Therefore they were in the kitchen at 8:00.

Quantum World: You can't find your quantum car keys at 8:00, but find them in the quantum kitchen at 8:15.  Therefore there is a 90% chance they were in the quantum kitchen at 8:00.

I'm not really getting a "now we can manipulate the past" sort of vibe off of this.
 
2015-02-10 10:48:26 AM  
1 vote:
Me after reading TFA:
i.imgur.comView Full Size
 
2015-02-10 10:36:04 AM  
1 vote:
You are not moving through time.  Time is moving through you.
 
2015-02-10 10:04:50 AM  
1 vote:
Prof Murch: Time can run backwards?

startrek.comView Full Size

"We wanted to see if you had the ability to expand your mind and your horizons. And for one brief moment, you did."
 
2015-02-10 9:41:49 AM  
1 vote:
Death comes to all who wait.
 
2015-02-10 9:31:32 AM  
1 vote:
img.fark.netView Full Size


Not for everyone.
 
2015-02-10 9:31:25 AM  
1 vote:
It worked!

 
2015-02-10 9:20:26 AM  
1 vote:
I think reading this article just now is the cause of all that time I spent getting high in college twenty years ago.
 
2015-02-10 9:20:17 AM  
1 vote:
wat

big.assets.huffingtonpost.comView Full Size
 
2015-02-10 9:17:10 AM  
1 vote:
Good job on the headline. Don't know the entire details, but that article is written horribly regarding the subject.
 
2015-02-10 9:15:44 AM  
1 vote:
upload.wikimedia.orgView Full Size


Flobadob, blib blob bleeb.
 
2015-02-10 9:12:47 AM  
1 vote:
One huge factor though is we are limited by human perception of the whole thing. It may be reasonable that we simply do not have the ability to conceive of states outside of our linear and temporal existence.
 
2015-02-10 9:12:33 AM  
1 vote:
Is this a repeat?
 
2015-02-10 9:08:47 AM  
1 vote:
What happened, happened.
 
2015-02-10 8:53:33 AM  
1 vote:
img.fark.netView Full Size
 
2015-02-10 8:35:54 AM  
1 vote:
I am so glad I took Quantum Mechanics 30 years ago...when it still sort of, almost made sense. But I guess not understanding it now means I didn't know it then, or maybe I did.
 
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