Navigation Links
Quantum entanglement only dependent upon area
Date:9/15/2013

Two researchers at UCL Computer Science and the University of Gdansk present a new method for determining the amount of entanglement a quantum phenomenon connecting two remote partners, and crucial for quantum technology - within part of a one-dimensional quantum system.

In their paper, published this week in Nature Physics, Dr Fernando Brando (UCL Computer Science) and Dr Michał Horodecki (Institute for Theoretical Physics and Astrophysics, University of Gdansk) demonstrate when the correlation between particles in a sample reduces exponentially with distance, the entanglement between one region and the rest of the sample only depends on the area of the boundary between them.

Characterising entangled states is essential for technologies such as quantum computation, quantum communication and quantum cryptography. Entanglement is also the difficulty behind making computer simulations of quantum systems. This finding shows that a large class of quantum systems (those with exponential decay of correlations) has only limited entanglement and so can be simulated easily.

The relationship between area and entanglement was suspected by researchers in this field based on the intuitive argument that if the correlation between particles in a system dropped off rapidly with distance, only nearby particles would be entangled with each other. Therefore, particles far away from a boundary would not participate in entanglement and only the boundary area would be relevant.

However, this tempting idea was undermined by the existence of a counterexample. This seemed to show that even when two regions could be separated by a layer wide enough to cut off nearly all correlation between them, observers would not be able to know as much about each region as they would if they were genuinely isolated. This 'data hiding' phenomenon is a key characteristic of entangled states, where a lack of knowledge of one partner affects what can
'/>"/>

Contact: David Weston
d.weston@ucl.ac.uk
44-020-310-83844
University College London
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Quantum Resonance Calibration Standards for Photometric Accuracy Replacing Old Fashioned Liquid Reference Standards
2. Perfectly doped quantum dots yield colors to dye for
3. Building quantum states with individual silicon atoms
4. Quantum computers counting on carbon nanotubes
5. Laser-like photons signal major step towards quantum Internet
6. Nature: Smallest vibration sensor in the quantum world
7. Major grant to investigate limits of quantum theory
8. NIST mechanical micro-drum used as quantum memory
9. NIST quantum refrigerator offers extreme cooling and convenience
10. UCSB physicists make discovery in the quantum realm
11. Quantum Cures Announces Breakthrough Approach for Researchers Seeking Cures for Orphan and Rare Diseases
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2015)... 2, 2015 Biovista Inc. is ... the 2015 BeHEARD science challenge, a global competition hosted ... researchers, access to the latest life science innovations and ... and pathway analytics capability to support Steven Laffoon ... the study of Niemann-Pick Disease Type A (NPA), a ...
(Date:9/2/2015)... SAN FRANCISCO, Calif. , Sept. 2, 2015 /PRNewswire/ ... that Bonnie H. Anderson , president and chief ... Healthcare Conference on Wednesday, September 16, 2015 at 10:30 ... . The live audio webcast and ... http://investor.veracyte.com . The webcast will be available shortly after ...
(Date:9/2/2015)... ... September 02, 2015 , ... Whitehouse Laboratories ... be attending Pharma Ed Resources upcoming educational seminar and training session on Extractable ... this timely conference will provide Updates & Case Studies on the Latest Compliance ...
(Date:9/1/2015)... ... September 02, 2015 , ... Spirax Sarco , the leader in products ... Spirax Sarco Anytime. This platform, offering unique online ordering capabilities, is only available ... Log on to Spirax Sarco Anytime and within minutes you can be making ...
Breaking Biology Technology:Biovista Sponsors Wylder Nation Foundation's Research on Acid Sphingomyelinase Deficiency 2Veracyte to Present at Morgan Stanley Global Healthcare Conference 2Whitehouse Laboratories to Participate in Pharm Ed Resources Extractables, Leachables, & Elemental Impurities Educational Seminar 2Whitehouse Laboratories to Participate in Pharm Ed Resources Extractables, Leachables, & Elemental Impurities Educational Seminar 3Spirax Sarco Announces New Features to Anytime Platform 2
... LMNX ) announced today that it has joined ... Match to raise awareness of the need for additional donors ... growing number of patients awaiting life-saving bone marrow transplants.  Recently, ... Registry in an effort to assist patients nationwide. Luminex will ...
... Oct. 5, 2011 SRI International has been awarded ... $14.3 million. The contracts provide SRI up to $11.7 ... for pharmacology and pharmacokinetics studies that will be carried ... These five-year contracts extend SRI,s preclinical studies for the ...
... Oct. 5, 2011 Adeona Pharmaceuticals, Inc. (NYSE Amex: ... central nervous system diseases, announced today that James S. Kuo, ... provide a brief update on its Alzheimer,s program at the ... companies at the invitation-only event on Tuesday evening, October 11, ...
Cached Biology Technology:Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 2Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 3Luminex Corporation Joins Forces With the National Marrow Donor Program - Be The Match® 4SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 2SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 3Adeona CEO to Present at the NYC Medtech Forum 2
(Date:8/25/2015)... CITY and BELLEVUE, Wash. ... leader in advanced robotic systems, announced today it will ... unmanned ground vehicle (UGV), at the National Tactical Officers ... The Guardian S is the first-ever ... culmination of years of research and in-field trials and ...
(Date:8/20/2015)... , Aug. 20, 2015 The ... consumers that are active and healthy. However, wearable ... the hospital environment to help improve diagnostic capabilities ... video from the Wearable Technologies Conference 2015 ... new applications for wearables in healthcare.    ...
(Date:8/19/2015)... N.Y. , Aug. 19, 2015  VOXX ... that it has entered into a Definitive Agreement ... property, of iris authentication market leader EyeLock through ... VOXX will have a controlling interest in the ... subject to completion of due diligence.  Expanding on ...
Breaking Biology News(10 mins):Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5
... Center has opened a new clinical study using a ... glioblastoma multiforme, a largely untreatable brain tumor. This ... in patients using measles to kill cancer. , "We ... the most lethal cancers," says Eva Galanis, M.D., oncologist ...
... thought to act as an oxygen store in the heart ... exists in many other tissues of the common carp, enabling ... Myglobin is found in large quantities in diving mammals such ... long periods during deep sea dives. Similarly in humans, myglobin ...
... targeted therapy with a common anti-inflammatory produced promising ... at UCLA's Jonsson Cancer Center reported. , Pairing ... Celebrex increased response rates in lung cancer patients ... assistant professor of hematology/oncology and lead author of ...
Cached Biology News:Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer 2Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer 3Common carp sheds new light on surviving in extreme environments 2Combination therapy shows promising results in patients with advanced lung cancer 2Combination therapy shows promising results in patients with advanced lung cancer 3
... ISO 9001:2000 Certified USDA Research Registered ... SOP's Training AALAS Certified Technicians ... Procedures GLP Documentation Upon Request Focus ... point for all your custom immunology service ...
Human IL-17D Affinity Purified Polyclonal Ab...
BBS/Glycerol/Casein Block and Diluent - 10X Concentrate, 1 L...
... Clone/PAD: ZMD.414. Immunogen: Synthetic peptide ... mouse and rat mTOR (Mammalian target of ... for the human mTOR protein. On ... at ~235 kDa. Reactivity: Human (positive ...
Biology Products: