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quantum computer
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asako
January 29, 2018
Technology
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quantum computer
量子コンピュータについて調査メモ
asako
January 29, 2018
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Transcript
ྔࢠίϯϐϡʔλ 2018.1.29 ASAKO TOYAMA
͖͔͚ͬ ྔࢠίϯϐϡʔλͬͯ • ڈɺ։ൃνʔϜͰྔࢠίϯϐϡʔλ͕ʹͳΓ·ͨ͠ • ྔࢠίϯϐϡʔλܥͰࣄ͕ਐΜͰ͍ΔΒ͍͠ • ͳΜ͔ͩɺঢ়گ͕͖ͬΓ͠ͳ͍
͋Εʁ ྔࢠίϯϐϡʔλͬͯ ࣮༻Խ10ઌͬͯ ӠΘΕ͍ͯͳ͔͚ͬͨͬʁ ͦ͏͍͑ IBM Qͱ͔ൃද͕͋ͬͨΑ͏ͳɾɾɾɾ
ࣗͰ άάΓͳ͕Β ௐͯΈͨ
HISTORY
1980 ྔࢠίϯϐϡʔλྺ࢙ • ཧతՄೳੑΛߟ͍͑ͯͨ࣌ • Richard Feynman͕࠷ॳʹఏ এͨ͠ͱ͔ɺ͠ͳ͍ͱ͔ •
David Deutsch ྔࢠίϯϐϡʔλͷܭࢉϞσ ϧΛఏএ
ྔࢠίϯϐϡʔλྺ࢙ 1990 • ࣮ݱͷͨΊͷΞϧΰϦζϜΛߟ͍͑ͯͨ࣌ • 1994 Peter Shor ҼղΛߴͰߦ͏ྔࢠΞϧΰϧζϜͷൃݟ ref.
https://en.wikipedia.org/wiki/Shor%27s_algorithm
2000 ྔࢠίϯϐϡʔλྺ࢙ • ࣮ݱͷͨΊͷΞϧΰϦζϜΛ ߟ͍͑ͯͨ࣌ͷଓ͖ • ͦͷҰํͰϋʔυͷਐల • ిಋૉࢠ •
࣓֩ؾڞ໐ • ిࢠεϐϯڞ໐ • ΠΦϯτϥοϓ • ྔࢠޫࢠ ref.https://newsroom.intel.com/news/intel-delivers-17-qubit-superconducting-chip-advanced-packaging-qutech/ Intel ͕։ൃͨ͠17-qubit superconducting chip ϓϩτλΠϓ൛
2010 ྔࢠίϯϐϡʔλྺ࢙ • 2011 D-Wage Systems D-Waveൃද • 2017 IBM
5ྔࢠϏοτͷྔࢠίϯϐϡʔλ ΦϯϥΠϯެ։ • 2017 IBM 17ྔࢠϏοτͷྔࢠίϯϐϡʔλΛΦϯϥΠϯެ։ • 2017 IBM 20ྔࢠϏοτͷྔࢠίϯϐϡʔλΛΦϯϥΠϯެ։ • 2017 Google 49ྔࢠϏοτͷྔࢠίϯϐϡʔλΛʹɺੑೳ࣮ূΛ͢Δ͜ͱΛൃද • 2017 IBM 50ྔࢠϏοτ ϓϩηοα ϓϩτλΠϓߏஙޭΛൃද • 2017 NTT & Nii QNNΫϥυγεςϜʢྔࢠχϡʔϥϧωοτϫʔΫʣΦϯϥΠϯެ։
Ճతʹ Γ্͕͍ͬͯΔ
ͳΜͰ ࣮༻·ͩઌɾɾɾͱ ࢥ͍ͬͯͨͷ͔
༷ʑͳ࣮ݱํࣜ
ྔࢠήʔτܕ
ήʔτԋࢉܕ ྔࢠήʔτܕ • 0ͱ1ͷॏͶ߹Θ͕ͤՄೳͳྔࢠϏοτΛଟ༻ҙ • ྔࢠঢ়ଶΛϢχλϦԋࢉʢྔࢠཧԋࢉʣΛ࣮ݱ͢Δ ࠓύιίϯͰ࣮ࢪ͍ͯ͠Δ࢛ଇԋࢉͰ͖Δ • IBM Q
/ Google͕࣮༻ԽΛࢦ͍ͯ͠Δྔࢠίϯϐϡʔλ࣮ݱํࣜ
2ͭͷೖྗ͕͋ͬͯɺ1ͭͷग़ྗ͕͋Δ ݹయίϯϐϡʔλͷཧԋࢉճ࿏ ͜͏͍͏ཧήʔτΛճ࿏ʹूੵͯ͠ίϯϐϡʔλ͕ಈ͍͍ͯΔΘ͚Ͱ͢
ෳͷೖྗ͕͋ͬͯɺෳͷ֬తͳग़ྗ͕͋Δ ྔࢠཧԋࢉճ࿏ • https://www.ibm.com/developerworks/jp/cloud/library/cl-quantum-computing/ index.html ΛݟͯΈΔ • 5ྔࢠϏοτͷೖྗ͕͋ͬͯɺͦΕͧΕͷྔࢠΛଌఆͯ͠ɺ͑ΛಘΔ • AND
ͱ͔ OR ͷԋࢉࢠ͡Όͳ͍ ͬ͞ͺΓΘ͔Βͳ͍͕ɺྔࢠܭࢉతͳήʔτΛઃఆ͢Δ • Ϗοτసԋࢉࢠ • Ґ૬సԋࢉࢠ • ΞμϚʔϧήʔτ • ੍ޚϊοτήʔτ
͜͜·Ͱ͖ͯɺ͋ͱҰาʁ • ཻࢠ͕ू·Δͱྔࢠྗֶతಛੑ͕ͳ͘ͳΓɺݹయత๏ଇʹै͏Α͏ ʹͳΔ • ͳͷͰɺ10ྔࢠϏοτఔͷϓϩτλΠϓ͔Βઌʹߦ͍ͬͯͳ͍ • খ͍͞ྔࢠίϯϐϡʔλΛͨ͘͞Μͭ͘Γɺྔࢠతੑ࣭Λཚͣ͞ʹ ϦϯΫΛுΔΞϓϩʔν͕ࡧ͞Ε͍ͯΔ
ྔࢠΠδϯάܕ ྔࢠΞχʔϦϯά
ྔࢠΞχʔϦϯά ྔࢠΠδϯάϞσϧํࣜ • D-Wave Systems͕༻Ϛγϯͱͯ͠։ൃͨ͠ͷ͕͜ͷྔࢠΞχʔϦϯάܕ • ిಋૉࢠΛ݁߹ͯ֨͠ࢠΛ࡞͍ͯ͠Δ • ΠδϯάϞσϧͱ֨ࢠؒͷిࢠεϐϯ͕ͬͱ҆ఆͨ͠ঢ়ଶΛࢉग़͢Δ ܭࢉํ๏Β͍͠
• Έ߹Θͤ࠷దԽʹಛԽ͍ͯ͠Δ ࢛ଇԋࢉ͕ɺͰ͖ͳ͍Θ͚Ͱͳ͍͕ɺۤख • ࠓͷݹయతίϯϐϡʔλͰΠδϯάϞσϧΛܭࢉͤ͞Δ͜ͱՄೳ • ϋʔυͰΠδϯάϞσϧߏங͍ͯ͠Δ͚ͩͰྔࢠήʔτΛ࣮ݱ͍ͯ͠ΔΘ͚ Ͱͳ͍ D-WAVE SYSTEMS
ྔࢠΞχʔϦϯά ྔࢠΠδϯάϞσϧํࣜ • 2048ྔࢠϏοτͷϚγϯΛൃද • طଘͷίϯϐϡʔλͷ1ԯഒͱ͔ɺ1ສഒͷܭࢉͱ͍͏৮ΕࠐΈ • ͜ΕେຊӦൃදͳͷͰ൷తͳҙݟ͕ଟ͋͘Δ - ࣗʹಘҙͳ͔͠ղ͔ͤͳ͍
- ൺֱରͷݹయίϯϐϡʔλʹνϡʔχϯάͤ͞ͳ͍ - ൺֱରͷݹయίϯϐϡʔλʹ࠷దͷΞϧΰϦζϜΛબͤ͞ͳ͍ D-WAVE SYSTEMS ref. http://www.dwavesys.com/sites/default/files/D-Wave%202000Q%20Tech%20Collateral_0117F.pdf
ྔࢠΠδϯάܕ ྔࢠχϡʔϥϧωοτϫʔΫ (ίώʔϨϯτɾΠδϯάɾϚγϯʣ
ྔࢠχϡʔϥϧωοτϫʔΫ ྔࢠΠδϯάϞσϧํࣜ • ίώʔϨϯτɾΠδϯάɾϚγϯͱ͍͏ • Έ߹Θͤ࠷దԽʹಛԽ͍ͯ͠Δ ΠδϯάϞσϧͱ͍͏ͷɺͦ͏͍͏ͷΒ͍͠ • QNN (Quantum
Nural NetworkʣͷϖʔδΛ͍ͯΈΔͱ QNNܭࢉஔ ޫύϥϝτϦοΫൃৼث(OPO)ͱݺΕΔ৽ܕϨʔβͷྔࢠྗֶతಛੑ Λ༻͍ͯ࠷దԽΛܭࢉ͠·͢ɻ͍ޫϑΝΠόϦϯάதΛपճ͢Δͨ͘͞Μͷ OPOύϧεؒʹɺղ͖͍ͨʹରԠ͢Δ૬ޓ࡞༻ΛྔࢠଌఆϑΟʔυόοΫճ࿏ʹ Α࣮ͬͯݱ͠·͢ɻܗ͞ΕͨOPOύϧεωοτϫʔΫɺଟճͷपճͷޙʹɺશ ମͱͯ͠࠷҆ఆͱͳΔ0Ґ૬·ͨπҐ૬ͷ߹ͤΛ୳͠ग़͠ɺͷ͑Λಋ͖ग़ ͠·͢ɻ • ͝ΊΜɻຊޠͳͷʹΑ͘Θ͔Βͳ͍ɻ NTT & NII & ౦ژେֶ & ..
ྔࢠχϡʔϥϧωοτϫʔΫ ྔࢠΠδϯάϞσϧํࣜ • ྔࢠΛར༻ͨ͠ܭࢉΛ͍ͯ͠ΔΘ͚Ͱͳ͍ • ৽͍͠ޫΞφϩάίϯϐϡʔλʁͱӠΘΕ͍ͯΔΒ͍͠ɹ • ϥΠόϧྔࢠΞχʔϦϯά NTT &
NII & ౦ژେֶ & ..
XXXX ྔࢠίϯϐϡʔλ࣮ݱํࣜ ref. http://itpro.nikkeibp.co.jp/article/COLUMN/20140314/543707/?rt=nocnt
ΠδϯάɾϚγϯͷ هࣄΛಡΜͰ͍Δͱ Α͘Θ͔Βͳ͍ͳ͕Β ࢲ͕΅ΜΓࢥ͍ͬͯͨ ྔࢠίϯϐϡʔλͱ গ͠ҧ͏Α͏ͳ…..
ࢲ͕ ྔࢠίϯϐϡʔλ ͱ ཧղ͍ͯͨ͠ͷ ྔࢠήʔτํࣜ ͱ ໌ͨ͠
ͭ·Γ…
ྔࢠήʔτํࣜίϯϐϡʔλ ͷ ࣮༻Խ ·ͩগ͔͔͠Δ
ͳΜͱͳ͘ ͖ͬ͢Γͨ͠
͓ΘΓ
ྔࢠίϯϐϡʔλͱͳʹ͔ ࢀߟϏσΦ • ྔࢠίϯϐϡʔλͷઆ໌ • https://www.youtube.com/watch?v=g_IaVepNDT4 (ӳޠࣈນ͋Γʣ ຐ๏͍ͷΑ͏ͳ͓͡͞Μ͕આ໌ͯ͘͠ΕͯπϘͩͬͨ • https://www.youtube.com/watch?v=JhHMJCUmq28
(ຊޠࣈນ͋Γʣ