building quantum computers - etsi · pdf filebuilding quantum computers prof. bill coish...
TRANSCRIPT
![Page 1: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/1.jpg)
Building Quantum Computers
Prof. Bill CoishDepartment of Physics
McGill UniversityMontreal, Canada
ETSI-IQC Workshop (Toronto) 2016 September 20
![Page 2: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/2.jpg)
“We do not see the need to upgrade current systems as urgent, though a transition to post-quantum public key cryptography will be necessary.”
https://www.cesg.gov.uk/content/files/protected_files/guidance_files/Quantum%20Key%20Distrubution%20-%20CESG%20White%20Paper.pdf
GCHQ (UK) CESG White Paper
Ars Technica (August 2015):
“NSA preps quantum-resistant algorithms to head off crypto-apocalypse”
GCHQ (UK) CESG White Paper (February 2016)
http://arstechnica.com/security/2015/08/nsa-preps-quantum-resistant-algorithms-to-head-off-crypto-apocolypse/
"Our ultimate goal is to provide cost effective security against a potential quantum computer,"
NSA statement posted online:
![Page 3: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/3.jpg)
Superconducting devices
Trapped ions/atoms
Spins
![Page 4: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/4.jpg)
Debnath et al. “Demonstration of a small programmable quantum computer with atomic qubits”, Nature 536, 63 (August 2016)
![Page 5: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/5.jpg)
https://quantumexperience.ng.bluemix.net/
![Page 6: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/6.jpg)
Veldhorst et al. “A Two-qubit Logic Gate in Silicon”, Nature 526, 410 (October 2015)
Maurand et al. “A CMOS Silicon Spin Qubit”, ArXiv.org:1605.07599 (May 2016)
![Page 7: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/7.jpg)
Avogadro crystal: Highly pure 28Si
How long can quantum states live?
Isolated nuclear spins in highly pure 28Si behave almost like they are in 'vacuum'
Sayeedi et al., Science (Nov. 2013)
World record lifetime for quantum coherence:
![Page 8: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/8.jpg)
http://www.economist.com/technology-quarterly/2016-03-12/after-moores-law
![Page 9: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/9.jpg)
![Page 10: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/10.jpg)
C. Monroe(atomic qubits)
R. Schoelkopf(supercond. qubits)
M. Lukin(spin qubits)
![Page 11: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/11.jpg)
Entanglement at 1.3 km for spins in diamond!
NYTimes.com (October 21, 2015)
http://qutech.nl/hanson-lab/loophole-free-bell-test/
![Page 12: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/12.jpg)
M. Ahsan, R. van Meter, and J. Kim“Designing a Million-Qubit Quantum Computer using a Resource Performance Simulator”ACM JETCS 12, 39 (December 2015)
“...Using this tool, we investigate a vast design space for implementing key building blocks of Shor’s algorithm to factor a 1,024-bit number with a baseline budget of 1.5 million qubits. We show that a trapped-ion quantum computer designed with twice as many qubits and one-tenth of the baseline infidelity of the communication channel can factor a 2,048-bit integer in less than 5 months.”
![Page 13: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/13.jpg)
![Page 14: Building Quantum Computers - ETSI · PDF fileBuilding Quantum Computers Prof. Bill Coish Department of Physics McGill University Montreal, Canada ETSI-IQC Workshop (Toronto) 2016 September](https://reader031.vdocuments.net/reader031/viewer/2022022422/5a9d59d07f8b9abd058c28f3/html5/thumbnails/14.jpg)