🗊 Презентация Quantum computers, quantum computations

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Quantum computers, quantum computations, слайд №1 Quantum computers, quantum computations, слайд №2 Quantum computers, quantum computations, слайд №3 Quantum computers, quantum computations, слайд №4 Quantum computers, quantum computations, слайд №5 Quantum computers, quantum computations, слайд №6 Quantum computers, quantum computations, слайд №7 Quantum computers, quantum computations, слайд №8 Quantum computers, quantum computations, слайд №9 Quantum computers, quantum computations, слайд №10 Quantum computers, quantum computations, слайд №11 Quantum computers, quantum computations, слайд №12 Quantum computers, quantum computations, слайд №13 Quantum computers, quantum computations, слайд №14 Quantum computers, quantum computations, слайд №15 Quantum computers, quantum computations, слайд №16 Quantum computers, quantum computations, слайд №17 Quantum computers, quantum computations, слайд №18 Quantum computers, quantum computations, слайд №19 Quantum computers, quantum computations, слайд №20 Quantum computers, quantum computations, слайд №21 Quantum computers, quantum computations, слайд №22 Quantum computers, quantum computations, слайд №23 Quantum computers, quantum computations, слайд №24 Quantum computers, quantum computations, слайд №25 Quantum computers, quantum computations, слайд №26 Quantum computers, quantum computations, слайд №27 Quantum computers, quantum computations, слайд №28 Quantum computers, quantum computations, слайд №29 Quantum computers, quantum computations, слайд №30 Quantum computers, quantum computations, слайд №31 Quantum computers, quantum computations, слайд №32 Quantum computers, quantum computations, слайд №33 Quantum computers, quantum computations, слайд №34 Quantum computers, quantum computations, слайд №35 Quantum computers, quantum computations, слайд №36 Quantum computers, quantum computations, слайд №37 Quantum computers, quantum computations, слайд №38 Quantum computers, quantum computations, слайд №39 Quantum computers, quantum computations, слайд №40 Quantum computers, quantum computations, слайд №41 Quantum computers, quantum computations, слайд №42 Quantum computers, quantum computations, слайд №43 Quantum computers, quantum computations, слайд №44

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Слайды и текст этой презентации


Слайд 1


Quantum computers, quantum computations H. Gomonay National Technical University of Ukraine JGU, Mainz, Germany
Описание слайда:
Quantum computers, quantum computations H. Gomonay National Technical University of Ukraine JGU, Mainz, Germany

Слайд 2


Take-home message The quest for a quantum computer reminds me of the endless quests for WIMPs, strings, sparticles, magnetic monopoles, etc. Succeed...
Описание слайда:
Take-home message The quest for a quantum computer reminds me of the endless quests for WIMPs, strings, sparticles, magnetic monopoles, etc. Succeed they or not, they bring to development of new knowledges and technologies, push the most talented people into science and keep fun from research. Same as it ever was.

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Motivation
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Motivation

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Outline History Principles of quantum computation Di Vincenzo criteria Superconducting qubit Some algorithms Architecture Challenges and problems
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Outline History Principles of quantum computation Di Vincenzo criteria Superconducting qubit Some algorithms Architecture Challenges and problems

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History in facts
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History in facts

Слайд 6


Quantum computers, quantum computations, слайд №6
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Слайд 7


History in diagrams
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History in diagrams

Слайд 8


What is beyond?
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What is beyond?

Слайд 9


Quantum Mechanics: Quantum Information
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Quantum Mechanics: Quantum Information

Слайд 10


What is all about or new applications of quantum physics
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What is all about or new applications of quantum physics

Слайд 11


What is QC?
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What is QC?

Слайд 12


Classical  Quantum
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Classical  Quantum

Слайд 13


Algorithm complexity Easy
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Algorithm complexity Easy

Слайд 14


Qubit = Quantum bit
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Qubit = Quantum bit

Слайд 15


Entangled states (EPR)
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Entangled states (EPR)

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Interference – Schrödinger's Cat
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Interference – Schrödinger's Cat

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Quantum parallelelism
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Quantum parallelelism

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Parallel quantum algorithm
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Parallel quantum algorithm

Слайд 19


Universal gate set Operation Gates: NOT Hadamar XOR
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Universal gate set Operation Gates: NOT Hadamar XOR

Слайд 20


Principles of quantum computation
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Principles of quantum computation

Слайд 21


Di Vincenzo criteria Selectivity (addressing each qubit) High sensitivity = Good control Large decoherence time (decoh/ gate >104) Readout ...
Описание слайда:
Di Vincenzo criteria Selectivity (addressing each qubit) High sensitivity = Good control Large decoherence time (decoh/ gate >104) Readout  Measurability Scalability (>100 qubits)

Слайд 22


Quantum computer by Cirac & Zoller (1995)
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Quantum computer by Cirac & Zoller (1995)

Слайд 23


Ions in trap
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Ions in trap

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Qubit: micro or macro? Measurement duration: Limitations: Energy splitting: Qubit = 1 electron spin: Measured Min splitting Min field Impossible! We...
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Qubit: micro or macro? Measurement duration: Limitations: Energy splitting: Qubit = 1 electron spin: Measured Min splitting Min field Impossible! We need macrospin!

Слайд 25


Superconductors: macroatoms Qubit: charge or phase Control: magnetic flux Readout: SQUID, SET T=10 mK 1 qubit gate — ns Qubit size 1 mcm
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Superconductors: macroatoms Qubit: charge or phase Control: magnetic flux Readout: SQUID, SET T=10 mK 1 qubit gate — ns Qubit size 1 mcm

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Superconducting qubit: overcoming decoherence
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Superconducting qubit: overcoming decoherence

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Flux qubit: theory
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Flux qubit: theory

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… & experiment
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… & experiment

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V-I SQUID (V.Shnyrkov, G. Tsoi, 1990)
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V-I SQUID (V.Shnyrkov, G. Tsoi, 1990)

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Quantum coherence
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Quantum coherence

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Single-qubit gate
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Single-qubit gate

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Rabi oscillations
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Rabi oscillations

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2-qubit gate (DiVincenzo et al, IBM qubit)
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2-qubit gate (DiVincenzo et al, IBM qubit)

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Find the period: Shor’s algorithm
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Find the period: Shor’s algorithm

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Hidden symmetry
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Hidden symmetry

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Database search Classic algorithm : 2n =N Quantum algorithm: 2n/2 = N Unsorted database Merlin
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Database search Classic algorithm : 2n =N Quantum algorithm: 2n/2 = N Unsorted database Merlin

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Grover’ algorithm Input Flip (Merlin) Mirroring
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Grover’ algorithm Input Flip (Merlin) Mirroring

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Grover’ algorithm: experiment
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Grover’ algorithm: experiment

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Architecture
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Architecture

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Quantum computer: challenges Decoherence (state instability) Scaling (few number of qubits) Input-output control Extreme conditions (T=10 mK, …) New...
Описание слайда:
Quantum computer: challenges Decoherence (state instability) Scaling (few number of qubits) Input-output control Extreme conditions (T=10 mK, …) New math algorithms development Consumer friendly implementation Weak measurement

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Quantum abyss
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Quantum abyss

Слайд 42


When, Where, Who & hoW? 2 qb — 1999, 7 qb — 2001, 16 qb — 2007, NP — 2012,1000 qb —2015, on-table -- 20xx? ~ 1000 experimental groups over the world...
Описание слайда:
When, Where, Who & hoW? 2 qb — 1999, 7 qb — 2001, 16 qb — 2007, NP — 2012,1000 qb —2015, on-table -- 20xx? ~ 1000 experimental groups over the world Physics, math, computer science, engineering? Semi- or super-conductors or?

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Alumni
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Alumni

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QUANTUM COMPUTING JOIN THE TEAM!
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QUANTUM COMPUTING JOIN THE TEAM!



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