Spacetime as an Emergent Phenomenon

A small, but growing, idea in theoretical physics and cosmology is that spacetime may be emergent. That is, spacetime emerges from something much more fundamental, in much the same way that our perception of temperature emerges from the motion and characteristics of underlying particles.

[div class=attrib]More on this new front in our quest to answer the most basic of questions from FQXi:[end-div]

Imagine if nothing around you was real. And, no, not in a science-fiction Matrix sense, but in an actual science-fact way.

Technically, our perceived reality is a gigantic series of approximations: The tables, chairs, people, and cell phones that we interact with every day are actually made up of tiny particles—as all good schoolchildren learn. From the motion and characteristics of those particles emerge the properties that we see and feel, including color and temperature. Though we don’t see those particles, because they are so much smaller than the phenomena our bodies are built to sense, they govern our day-to-day existence.

Now, what if spacetime is emergent too? That’s the question that Joanna Karczmarek, a string theorist at the University of British Columbia, Vancouver, is attempting to answer. As a string theorist, Karczmarek is familiar with imagining invisible constituents of reality. String theorists posit that at a fundamental level, matter is made up of unthinkably tiny vibrating threads of energy that underlie subatomic particles, such as quarks and electrons. Most string theorists, however, assume that such strings dance across a pre-existing and fundamental stage set by spacetime. Karczmarek is pushing things a step further, by suggesting that spacetime itself is not fundamental, but made of more basic constituents.

Having carried out early research in atomic, molecular and optical physics, Karczmarek shifted into string theory because she “was more excited by areas where less was known”—and looking for the building blocks from which spacetime arises certainly fits that criteria. The project, funded by a $40,000 FQXi grant, is “high risk but high payoff,” Karczmarek says.

Although one of only a few string theorists to address the issue, Karczmarek is part of a growing movement in the wider physics community to create a theory that shows spacetime is emergent. (See, for instance, “Breaking the Universe’s Speed Limit.”) The problem really comes into focus for those attempting to combine quantum mechanics with Einstein’s theory of general relativity and thus is traditionally tackled directly by quantum gravity researchers, rather than by string theorists, Karczmarek notes.

That may change though. Nathan Seiberg, a string theorist at the Institute for Advanced Study (IAS) in Princeton, New Jersey, has found good reasons for his stringy colleagues to believe that at least space—if not spacetime—is emergent. “With space we can sort of imagine how it might work,” Sieberg says. To explain how, Seiberg uses an everyday example—the emergence of an apparently smooth surface of water in a bowl. “If you examine the water at the level of particles, there is no smooth surface. It looks like there is, but this is an approximation,” Seiberg says. Similarly, he has found examples in string theory where some spatial dimensions emerge when you take a step back from the picture (arXiv:hep-th/0601234v1). “At shorter distances it doesn’t look like these dimensions are there because they are quantum fluctuations that are very rapid,” Seiberg explains. “In fact, the notion of space ceases to make sense, and eventually if you go to shorter and shorter distances you don’t even need it for the formulation of the theory.”

[div class=attrib]Read the entire article after the jump.[end-div]

[div class=attrib]Image courtesy of Nature.[end-div]

49 thoughts on “Spacetime as an Emergent Phenomenon”

  1. I will immediately take hold of your rss feed as I can not find your e-mail subscription hyperlink or newsletter service. Do you have any? Kindly allow me realize in order that I may just subscribe. Thanks.

  2. Pingback: g-spot vibrator
  3. wonderful issues altogether, you simply received a logo
    new reader. What could you recommend about your submit that you just made some days ago?
    Any sure?

  4. Pingback: Google
  5. Pingback: intimate costumes
  6. Hello would you mind sharing which blog platform you’re working with?

    I’m going to start my own blog soon but I’m having a difficult time deciding between BlogEngine/Wordpress/B2evolution and Drupal.
    The reason I ask is because your design and style seems different then most blogs and I’m looking for
    something completely unique. P.S My apologies for being off-topic but
    I had to ask!

  7. you’re actually a good webmaster. The website loading pace
    is incredible. It kind of feels that you are doing
    any unique trick. In addition, The contents are masterwork.
    you’ve done a great task on this topic!

  8. I felt amazing to read this article and I think you are 100 correct. Let me know if you are thinking of garageband for windows, that’s my principal competence. I really hope to hear from you in the near future, bye for now!

  9. Simply wish to say your article is as amazing.
    The clearness in your post is simply great and
    i could assume you’re an expert on this subject.
    Well with your permission allow me to grab your feed to keep updated with forthcoming post.

    Thanks a million and please carry on the gratifying work.

  10. We stumbled over here from a different web page
    and thought I might as well check things out.
    I like what I see so i am just following you. Look forward to finding out about your web page repeatedly.

  11. Howdy! This is my very first reply on this site so I simply wanted to say a quick hello and tell you I genuinely enjoy reading through your blog posts. Can you recommend other websites that cover kik for android? I’m as well very keen on this! Appreciate it!

  12. Hello everybody, here every person is sharing these kinds of familiarity, therefore it’s good to read this web site, and I used to visit this weblog every day.

  13. Hey there! I’ve been reading your blog for a long time now and finally got the bravery to go ahead
    and give you a shout out from Porter Tx! Just wanted to tell
    you keep up the fantastic work!

  14. Ahaa, its nice dialogue concerning this piece of writing here at this webpage, I have read all that, so
    at this time me also commenting here.

  15. You actually make it appear really easy along with your presentation however I find this matter to be actually something which I think I might by no means understand. It kind of feels too complicated and very broad for me. I’m taking a look forward to your next put up, I’ll try to get the grasp of it!

  16. As I web-site possessor I believe the content matter here is rattling excellent , appreciate it for your efforts. You should keep it up forever! Best of luck.

  17. Pingback: Google
  18. Pretty great post. I simply stumbled upon your blog and wished to mention that I’ve really enjoyed browsing your weblog posts. After all I will be subscribing in your feed and I hope you write again very soon!

  19. I am truly enjoying the theme of your weblog. Do you ever face any kind of browser interface problems? A lot of my site audience have complained concerning my shareit app download blog not operating the right way in Explorer though seems awesome in Safari. Do you have any recommendations to help fix this issue?

  20. I like the valuable information you supply in your articles. I’ll bookmark your blog and take a look at once more right here frequently. I’m relatively sure I’ll learn many new stuff proper right here! Good luck for the next!

  21. You’re so interesting! I do not suppose I’ve truly read anything like that before. So wonderful to find somebody with unique thoughts on this topic. Really.. thanks for starting this up. This website is something that is needed on the web, someone with a little originality!

  22. Liquid Amoxicillin [url=http://strat1.xyz/buy-atomoxetine-online.php]Buy Atomoxetine Online[/url] Zithromax Second Dose Tadalafil 20 Mg Sublingual [url=http://buykama.xyz/buy-generic-kamagra-online.php]Buy Generic Kamagra Online[/url] Propecia To Grow Hair Zithromax When To Take [url=http://deltas.xyz/buying-deltasone-online.php]Buying Deltasone Online[/url] Achat Levitra En Pharmacie Tomar Cialis Todos Los Dias [url=http://priligy-30mg-tablets.prilipills.com]Priligy 30mg Tablets[/url] Acheter Cialis En Belgique Viagra Acquisto In Farmacia [url=http://viagra-online-blue.via100mg.com]Viagra Online Blue[/url] Salzarex Gen Amoxicillin 750mg Comprare Viagra Originale [url=http://prope1.xyz/online-pharmacy-propecia.php]Online Pharmacy Propecia[/url] Viagra Pills Oline Ou Acheter Du Viagra [url=http://leviusa.com]levitra samples[/url] Viagra For Sale Online Rezeptfrei Viagra Preis [url=http://prope1.xyz/generic-propecia-cost.php]Generic Propecia Cost[/url] Levitra 20 Mg Generico Mail Order Free Shipping Provera Medroxine Direct In Internet [url=http://al7.xyz/alli-online.php]Alli Online[/url] Generic Viagra Overnite No Perscription Fedex Shipping Isotretinoin Tablets Low Price [url=http://buyzol.xyz/get-cheap-zoloft-online.php]Get Cheap Zoloft Online[/url] Wo Kann Ich Viagra Ohne Rezept Can You Still Get Accutane From Canada [url=http://5553pill.xyz/order-cheap-vibramycin.php]Order Cheap Vibramycin[/url] Levitra Generico Online Vendita Vademecum Cialis [url=http://prope1.xyz/propecia-drug.php]Propecia Drug[/url] Fluconazole By Mail

  23. Right here is the right blog for anybody who wishes to understand this topic. You realize a whole lot its almost hard to argue with you (not that I actually would want laugh out loud). You certainly put a fresh spin on a topic that has been written about for many years. Great stuff, just excellent!

  24. Buy Celexa Cheap [url=http://cial1.xyz/order-cialis-tablets.php]Order Cialis Tablets[/url] Viaga Online Isotretinoin izotek Baltimore [url=http://levi1.xyz/levitra-online.php]Levitra Online[/url] Propecia For 10 Years Louer Levitra Sans Ordonnance [url=http://doxyc.xyz/vibramycin-pills.php]Vibramycin Pills[/url] Viagra Online Generic Fast Delivery Viagra Falschungen Nebenwirkungen [url=http://clom1.xyz/buy-clomid-via-mail.php]Buy Clomid Via Mail[/url] Pharmacie Online Viagra Discount Cialis Gunstigster Preis [url=http://prop1.xyz/prozac-price.php]Prozac Price[/url] Gonorrhea Zithromax Cialis Cerveza [url=http://buyac.xyz/izotek.php]Izotek[/url] Propecia Uno De Cincuenta Amoxil Acheter [url=http://kama1.xyz/cheap-kamagra-tablets.php]Cheap Kamagra Tablets[/url] Cialis En Pharmacie Prix How Much Is Cialis Prescription [url=http://buyzol.xyz/zoloft-buy-online.php]Zoloft Buy Online[/url] buy liquid accutane Affective Propecia Doses [url=http://buynolva.xyz/purchase-nolvadex-no-prescription.php]Purchase Nolvadex No Prescription[/url] Amoxicillin No Membership Fee Cheapest Lasix [url=http://levi1.xyz/buy-levitra-vardenafil.php]Buy Levitra Vardenafil[/url] Amoxil Online Pharmacy Viagra Ricetta Bianca [url=http://las1.xyz/lasix-furosemide.php]Lasix Furosemide[/url] Erectile Dysfunction Drugs Online Cuanto Cuesta Cialis En Espana [url=http://furos.xyz/buy-online-lasix.php]Buy Online Lasix[/url] Finasteride 1mg Buy Generic Propecia Online Propecia No Prescription [url=http://deltas.xyz/where-to-order-deltasone.php]Where To Order Deltasone[/url] Cephalexin For Canine Is Keflex Good For Teeth Nfection [url=http://sildenaf.xyz/viagra-sample.php]Viagra Sample[/url] Purchase Dyazide Online Legally Fluoxetine How To Buy Free Shipping [url=http://buyizot.xyz/buy-accutane-cheap.php]Buy Accutane Cheap[/url] isotretinoin free shipping Oral Amoxil For Cats [url=http://buyprednis.xyz/buy-cheap-deltasone-site.php]Buy Cheap Deltasone Site[/url] Feline Dose Amoxicillin Order Now Doryx In Internet [url=http://doxyc.xyz/vibramycin-online.php]Vibramycin Online[/url] Careprost Acquistare Viagra Online Con Postepay [url=http://furos.xyz/buy-lasix-40mg.php]Buy Lasix 40mg[/url] Flagyl Online Overnight Zithromax Dose Pediatric [url=http://propeus.xyz/propecia-tablets-price.php]Propecia Tablets Price[/url] Overnight Femara Canadian Farmacia Lugano Cialis [url=http://prope1.xyz/propecia-drug.php]Propecia Drug[/url] Buy Cheap Kamagra Online Propecia Finasteride Dosage [url=http://buycheapdapoxonline.xyz/where-to-buy-priligy-in-usa.php]Where To Buy Priligy In Usa[/url] Cialis Cuanto Tiempo Antes Progesterone With Overnight Delivery [url=http://doxyc.xyz/vibramycin-pills.php]Vibramycin Pills[/url] buy Female Viagra Cialis Y Taquicardia [url=http://antabusa.xyz/generic-antabuse-usa.php]Generic Antabuse Usa[/url] Lisinopril 10 Mg No Prescription Kamagra Sildenafil 100 Mg [url=http://buyzol.xyz/buy-online-zoloft.php]Buy Online Zoloft[/url] Amoxicillin Tablets Food Interactions Purchase Diflucan Without Prescription [url=http://buynolva.xyz/ordering-nolvadex.php]Ordering Nolvadex[/url] Next Day Delivery Pharmacy Order Renova Cheap [url=http://clom1.xyz/by-cheap-clomiphene.php]By Cheap Clomiphene[/url] Cialis 20 Mg Confezione Buy Propecia Through Paypal [url=http://cial1.xyz/order-cialis.php]Order Cialis[/url] Discount Generic Amoxicilina Where To Order Drugs Overseas Munchen Buy Xenical Online [url=http://nolva.xyz/buy-nolvadex-online-usa.php]Buy Nolvadex Online Usa[/url] Canadian Pharmacy Uk Support Canadianpharmsupport [url=http://buykama.xyz/purchase-cheap-kamagra.php]Purchase Cheap Kamagra[/url] Viagra Without Prescription In Canada Cialis E Antibiotico [url=http://nolva.xyz/nolvadex-10mg.php]Nolvadex 10mg[/url] Meningitis Mite Amoxicillin Viagra Hombre [url=http://antab1.xyz/order-antabuse-in-usa.php]Order Antabuse In Usa[/url] Levitra Wiki Kamagra Gel Online Kaufen [url=http://buyal.xyz/purchase-generic-xenical.php]Purchase Generic Xenical[/url] Viagra Calgary Fast Shipping Cephalexin Dosing For Dogs [url=http://furos.xyz/generic-furosemide.php]Generic Furosemide[/url] Amoxicillin Effects On Liver Dapoxetine And Cialis [url=http://amox1.xyz/generic-amoxil-buy.php]Generic Amoxil Buy[/url] Preisvergleich Viagra 100 Brand Viagra Prices [url=http://amox1.xyz/cheap-amoxil-500mg.php]Cheap Amoxil 500mg[/url] Valacyclovir 500 Mg Kamagra Consegna Veloce Francia [url=http://nolva.xyz/nolvadex-without-a-prescription.php]Nolvadex Without A Prescription[/url] Cialis Forum Taglich direct isotretinoin where to order medication without rx West Lothian [url=http://cyto1.xyz/buy-cheap-cytotec-pills.php]Buy Cheap Cytotec Pills[/url] Arava Invega [url=http://deltas.xyz/order-deltasone.php]Order Deltasone[/url] Tetracycline And Amoxicillin Clobetasol Medicine Internet No Doctor [url=http://las1.xyz/lasix-tablet.php]Lasix Tablet[/url] Sunthi Viagra 100mg Price [url=http://buyzithro.xyz/zithromax-pill.php]Zithromax Pill[/url] Acheter Clomid Cette Viagra Pillen Preis [url=http://amox1.xyz/amoxil-online-prices.php]Amoxil Online Prices[/url] Viagra 800mg Reviews Celebrex To Buy In Canada [url=http://nolva.xyz/purchase-nolvadex.php]Purchase Nolvadex[/url] Order Now Clobetasol Cash Delivery Gabapentin Powder Online [url=http://deltas.xyz]Buy Prednisone[/url] Cialis Kaufen In Der Schweiz

  25. you’re really a good webmaster. The web site loading speed is amazing. It seems that you’re doing any unique trick. Furthermore, The contents are masterpiece. you have done a wonderful job on this topic!

  26. A formidable share, I just given this onto a colleague who was doing a little evaluation on this. And he actually bought me breakfast as a result of I discovered it for him.. smile. So let me reword that: Thnx for the treat! But yeah Thnkx for spending the time to debate this, I feel strongly about it and love reading more on this topic. If potential, as you change into experience, would you thoughts updating your blog with more details? It is extremely helpful for me. Huge thumb up for this weblog publish!

  27. great post, very informative. I wonder why the other experts of this sector don’t notice this. You should continue your writing. I am confident, you’ve a huge readers’ base already!

  28. Thanks for another informative site. Where else could I get that type of info written in such an ideal way? I’ve a project that I’m just now working on, and I have been on the look out for such info.

  29. Hi would you mind sharing which blog platform you’re working with? I’m going to start my own blog in the near future but I’m having a tough time making a decision to go with BlogEngine.

  30. You really make it appear really easy along with your presentation but I to find this matter to be really something that I think I’d by no means understand. It seems too complicated and extremely large for me. I am taking a look ahead to your next submit, I’ll attempt to get the hold of it!

  31. India levitra prolungato uso rx farmacia italia alla consegna anni erettile cialis in 35 disfunzione hyderabad
    comprare cialis
    comoprare viagra
    comprare sildenafil
    comprare vardenafil
    vendita cialis generico in italia
    acquisto viagra generico in italia
    dove acquistare cialis generico in italia
    http://rxfarmaciaitalia.com
    comprare cialis generico in italia in contrassegno
    dove acquistare viagra generico in italia
    acquistare cialis generico online italia
    acquisto cialis generico sicuro

  32. I’ve read several good stuff here. Certainly worth bookmarking for revisiting. I surprise how much effort you put to create such a fantastic informative site.

  33. hello there and thank you for your info – I’ve certainly picked up anything new from right here. I did however expertise several technical points using this web site, as I experienced to reload the site a lot of times previous to I could get it to load properly. I had been wondering if your hosting is OK? Not that I am complaining, but slow loading instances times will sometimes affect your placement in google and can damage your high quality score if advertising and marketing with Adwords. Well I am adding this RSS to my email and can look out for a lot more of your respective exciting content. Make sure you update this again soon..

  34. What’s Taking place i am new to this, I stumbled upon this I’ve discovered It absolutely useful and it has aided me out loads. I’m hoping to contribute & help other users like its helped me. Great job.

  35. Hi There! We are looking for some people that are interested in from working their home on a full-time basis. If you want to earn $100 a day, and you don’t mind writing some short opinions up, this is the perfect opportunity for you! Simply check out the link here NOW!

  36. F*ckin’ remarkable things here. I am very glad to see your post. Thanks a lot and i’m looking forward to contact you. Will you please drop me a mail?

  37. I am really loving the theme/design of your web site. Do you ever run into any browser compatibility problems? A few of my blog readers have complained about my website not working correctly in Explorer but looks great in Chrome. Do you have any tips to help fix this issue?

Leave a Reply

Your email address will not be published.