Navigation Links
Dartmouth researchers propose new way to reproduce a black hole
Date:8/21/2009

HANOVER, NH Despite their popularity in the science fiction genre, there is much to be learned about black holes, the mysterious regions in space once thought to be absent of light. In a paper published in the August 20 issue of Physical Review Letters, the flagship journal of the American Physical Society, Dartmouth researchers propose a new way of creating a reproduction black hole in the laboratory on a much-tinier scale than their celestial counterparts.

The new method to create a tiny quantum sized black hole would allow researchers to better understand what physicist Stephen Hawking proposed more than 35 years ago: black holes are not totally void of activity; they emit photons, which is now known as Hawking radiation.

"Hawking famously showed that black holes radiate energy according to a thermal spectrum," said Paul Nation, an author on the paper and a graduate student at Dartmouth. "His calculations relied on assumptions about the physics of ultra-high energies and quantum gravity. Because we can't yet take measurements from real black holes, we need a way to recreate this phenomenon in the lab in order to study it, to validate it."

In this paper, the researchers show that a magnetic field-pulsed microwave transmission line containing an array of superconducting quantum interference devices, or SQUIDs, not only reproduces physics analogous to that of a radiating black hole, but does so in a system where the high energy and quantum mechanical properties are well understood and can be directly controlled in the laboratory. The paper states, "Thus, in principle, this setup enables the exploration of analogue quantum gravitational effects."

"We can also manipulate the strength of the applied magnetic field so that the SQUID array can be used to probe black hole radiation beyond what was considered by Hawking," said Miles Blencowe, another author on the paper and a professor of physics and astronomy at Dartmouth.

This is not the first proposed imitation black hole, says Nation. Other proposed analogue schemes have considered using supersonic fluid flows, ultracold bose-einstein condensates and nonlinear fiber optic cables. However, the predicted Hawking radiation in these schemes is incredibly weak or otherwise masked by commonplace radiation due to unavoidable heating of the device, making the Hawking radiation very difficult to detect. "In addition to being able to study analogue quantum gravity effects, the new, SQUID-based proposal may be a more straightforward method to detect the Hawking radiation," says Blencowe.


'/>"/>

Contact: Sue Knapp
sue.knapp@dartmouth.edu
603-646-3661
Dartmouth College
Source:Eurekalert

Related biology technology :

1. Dartmouth researchers advance cellulosic ethanol production
2. Researchers improve ability to write and store information on electronic devices
3. Long-awaited international ethical guidelines for biobank researchers
4. CU researchers shed light on light-emitting nanodevice
5. Stevens researchers provide new information about mass spectrometry
6. Researchers measure carbon nanotube interaction
7. Researchers underscore limitations of genetic ancestry tests
8. ASU researchers improve memory devices using nanotech
9. UD researchers race ahead with latest spintronics achievement
10. Researchers outline structure of largest nonvirus particle ever crystallized
11. Ames Laboratory researchers solve fuel-cell membrane structure conundrum
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/20/2017)... ... February 20, 2017 , ... PuraCath Medical, ... with peritoneal dialysis, announced today that it has published the result of its ... Peritoneal Dialysis International (PDI), the official Journal of the International Society for ...
(Date:2/20/2017)... 20, 2017  Atrius Health and IBM (NYSE: ... agreement to develop a cloud based service designed ... holistic view of the multiple influences on an ... could be designed to support shared decision making ... innovative nonprofit healthcare organization with 875 physicians caring ...
(Date:2/18/2017)... Heights, IL (PRWEB) , ... February 17, 2017 ... ... for Blood and Marrow Transplantation (ASBMT) and the Center for International Blood & ... Palms Convention Center in Orlando, Fla. , The combined scientific sessions ...
(Date:2/17/2017)... According to a new ... Service), Type (Safety, Efficacy, Validation), Disease Indication (Cancer, ... Development, Disease-Risk) - Global Forecast to 2021" published ... USD 53.34 Billion by 2021 from USD 27.95 ... 13.8% during the forecast period (2016-2021). ...
Breaking Biology Technology:
(Date:2/8/2017)... , Feb. 7, 2017 The biometrics ... by the confluence of organizations, desires to better ... knowledge-based systems (password and challenge questions), biometrics is ... government systems. The market is driven by use ... between consumer and enterprise uses cases, with consumer-facing ...
(Date:2/7/2017)... 7, 2017 Ipsidy Inc. ( ... [OTC: IDGS], ("Ipsidy" or the "Company") a provider of ... services, is pleased to announce the following changes as ... Effective January 31, 2017, Philip D. Beck ... and President.  An experienced payment industry professional and public ...
(Date:2/2/2017)... 2017   TapImmune, Inc. (NASDAQ: ... in the development of innovative peptide and gene-based ... and metastatic disease, announced today it has successfully ... a second clinical lot of TPIV 200, the ... The manufactured vaccine product will be used to ...
Breaking Biology News(10 mins):