Contextuality supplies the 'magic' for quantum computation

Mark HowardJoseph Emerson


Quantum computers promise dramatic advantages over their classical counterparts, but the source of the power in quantum computing has remained elusive. Here we prove a remarkable equivalence between the onset of contextuality and the possibility of universal quantum computation via 'magic state' distillation, which is the leading model for experimentally realizing a fault-tolerant quantum computer. This is a conceptually satisfying link, because contextuality, which precludes a simple 'hidden variable' model of quantum mechanics, provides one of the fundamental characterizations of uniquely quantum phenomena. Furthermore, this connection suggests a unifying paradigm for the resources of quantum information: the non-locality of quantum theory is a particular kind of contextuality, and non-locality is already known to be a critical resource for achieving advantages with quantum communication. In addition to clarifying these fundamental issues, this work advances the resource framework for quantum computation, which has a number of practical applications, such as characterizing the efficiency and trade-offs between distinct theoretical and experimental schemes for achieving robust quantum computation, and putting bounds on the ove...Continue Reading


Aug 23, 1996·Science·S Lloyd
Dec 31, 1990·Physical Review Letters·N D Mermin
Nov 13, 2003·Physical Review Letters·Guifré Vidal
Aug 7, 2007·Physical Review Letters·Antonio AcínValerio Scarani
Mar 21, 2008·Physical Review Letters·Animesh DattaCarlton M Caves
Aug 8, 2009·Physical Review Letters·H BartosikY Hasegawa
Feb 26, 2013·Physical Review Letters·Maarten Van den Nest
Apr 27, 2013·Nature·Ben W ReichardtUmesh Vazirani
Mar 4, 2014·Physical Review Letters·Adán CabelloAndreas Winter

❮ Previous
Next ❯


Jul 21, 2016·Proceedings. Mathematical, Physical, and Engineering Sciences·Ciarán M Lee, Matty J Hoban
Dec 30, 2017·Physical Review Letters·Xiang ZhanPeng Xue
May 18, 2016·Scientific Reports·Keisuke Fujii, Shuhei Tamate
Oct 9, 2015·Scientific Reports·Z GedikF F Fanchini
Jun 14, 2016·Nature Communications·Michael D MazurekRobert W Spekkens
Mar 16, 2017·Scientific Reports·Tao LiXiangdong Zhang
Apr 13, 2017·Nature Communications·Dirk WitthautMarc Timme
Oct 5, 2016·Nature Communications·Markus JergerArkady Fedorov
Jun 12, 2014·Nature·Stephen D Bartlett
Oct 4, 2017·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Samson AbramskySimon Perdrix
Jul 22, 2015·Physical Review Letters·Ali AsadianOtfried Gühne
Jul 22, 2015·Physical Review Letters·Adán CabelloCostantino Budroni
Sep 17, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Janne V Kujala, Ehtibar N Dzhafarov
Sep 17, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Costantino Budroni
Sep 17, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Barbara Amaral
Sep 17, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Samson Abramsky, Giovanni Carù
Sep 17, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·J Acacio de BarrosDécio Krause
Aug 1, 2015·Physical Review Letters·Hillary Dawkins, Mark Howard
Jul 16, 2016·Physical Review Letters·Xiao YuanXiongfeng Ma
Sep 28, 2017·Physical Review Letters·Samson AbramskyShane Mansfield
Apr 2, 2019·Physical Review Letters·Aonan ZhangLijian Zhang
May 3, 2019·Scientific Reports·Mladen PavičićP K Aravind
Nov 21, 2019·Scientific Reports·Tao LiXiangdong Zhang
Dec 7, 2019·Physical Review Letters·William M Kirby, Peter J Love
Jun 17, 2020·Nature Communications·Zheng-Hao LiuGuang-Can Guo
Dec 20, 2014·Physical Review Letters·Earl T Campbell
Jan 3, 2015·Physical Review Letters·Breno MarquesMohamed Bourennane
Jan 23, 2016·Physical Review Letters·Patrick P Hofer, A A Clerk
Dec 8, 2016·Physical Review Letters·Bi-Heng LiuAdán Cabello
Mar 18, 2017·Physical Review Letters·Mark Howard, Earl Campbell
May 19, 2018·Physical Review Letters·F M LeupoldJ P Home
Dec 24, 2018·Physical Review Letters·Shane Mansfield, Elham Kashefi
May 6, 2019·Physical Review Letters·Piers LillystoneJoseph Emerson
Mar 24, 2020·Physical Review Letters·Xin WangYuan Su
Jul 31, 2020·Nature Communications·David R M Arvidsson-ShukurSeth Lloyd
Feb 14, 2018·Physical Review Letters·Matteo Lostaglio
Feb 13, 2016·Physical Review Letters·Huangjun Zhu
Jan 18, 2018·Physical Review Letters·Juan Bermejo-VegaRobert Raussendorf
Apr 26, 2018·Physical Review Letters·Barbara AmaralLeandro Aolita
Apr 24, 2019·Physical Review Letters·Roope UolaOtfried Gühne
Jul 1, 2020·Physical Review Letters·Zhen-Peng XuOtfried Gühne
Oct 20, 2020·Proceedings. Mathematical, Physical, and Engineering Sciences·Shiroman Prakash
Feb 1, 2019·Entropy·Kishor BhartiLeong-Chuan Kwek

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology
Markus Heilig
Nature Reviews. Cancer
Sarah Seton-Rogers
© 2022 Meta ULC. All rights reserved