Quantum Party Tricks
featuring grumpy cat
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338758/schrodinger-cat-meme.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
About Presenter James Weaver
IBM Quantum Developer Advocate
Java Champion
Developer / Author / Speaker
james.weaver@ibm.com
JavaFXpert.com
CulturedEar.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/2305520/Screen_Shot_2016-03-03_at_3.30.04_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6597948/james_weaver_ibm_2064.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6796406/416V7BqiogL.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4137779/Eniac.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4137793/ibm-q-hardware.png)
History repeating itself
Massive hardware, limited bits, software infancy
Quantum computers make direct use of quantum-mechanical phenomena, such as superposition, interference and entanglement, to perform operations on data.
Feasible on classical computers
Feasible on quantum computers
Solutions to problems
Why use a quantum computer?
Some problems may be solved exponentially faster
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Near-term quantum computing domains
Machine Learning
Optimization
Chemistry
Finance
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/5536596/aqua-chemistry-LiHEnergy.gif)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/5536625/aqua-optimization.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/5536629/aqua-machine-learning.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/5536764/aqua-finance.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
My microscopic cat is often grumpy
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
sometimes he is actually happy
but I've never observed him in-between those states
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Axiom 1: Superposition principle
Cat can be in any combination of grumpy and happy
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4332168/Screen_Shot_2017-11-14_at_10.41.16_AM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Axiom 2: Unitary evolution
gates modeled as matrices
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
X
NOT gate (Pauli/X, bit-flip)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Making Grumpy Cat happy with an X gate
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507142/Screen_Shot_2019-09-04_at_6.20.35_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507204/Screen_Shot_2019-09-04_at_7.10.51_PM.png)
After measurement
Before measurement
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Download QiskitBlocks from qisk.it/blocks
Hadamard gate
great for putting cats in equal superpositions
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
H
Hadamard gate
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Making Grumpy Cat happy about half the time
After measurement
Before measurement
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507226/Screen_Shot_2019-09-04_at_7.25.33_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507228/Screen_Shot_2019-09-04_at_7.26.15_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Axiom 3: Measurement
probability is amplitude squared
When observed there is a:
probability of being grumpy
probability of being happy
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Quantum entanglement
spooky actions at a distance
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
H
Hadamard gate
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341632/GirlGrumpyCat.png)
CNOT gate
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341632/GirlGrumpyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341854/girlHappyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341632/GirlGrumpyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341854/girlHappyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342527/rocket.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342527/rocket.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342556/480px-OSIRIS_Mars_true_color.jpg)
Mars - ESA
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342563/Venus-real_color.jpg)
Alice Cat
Bob Cat
Venus - NASA
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342628/cartoon-space-helmet.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341854/girlHappyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4342628/cartoon-space-helmet.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4328458/HappyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4341632/GirlGrumpyCat.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4343635/cat-bell.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Entangling Alice Cat and Bob Cat
After measurement
Before measurement
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507374/Screen_Shot_2019-09-04_at_8.54.11_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6507377/Screen_Shot_2019-09-04_at_8.53.35_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Running on an IBM quantum computer
Right-click the Q block and paste QASM into IBM Quantum Experience Circuit Composer
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6653271/Screen_Shot_2019-10-14_at_1.26.26_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6653285/Screen_Shot_2019-10-14_at_1.28.56_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
IBM Q Experience Qiskit notebooks
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/6138344/Screen_Shot_2019-05-15_at_2.44.37_PM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/5389396/Screen_Shot_2018-10-21_at_7.25.29_AM.png)
Qiskit open source quantum computing framework
Developing quantum apps
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
Quantum Party Tricks
featuring grumpy cat
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338646/GrumpyCat2.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/4338758/schrodinger-cat-meme.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/396450/images/7280840/Screen_Shot_2020-04-21_at_10.08.44_AM.png)
JJUG Lightning Talk: Grumpy and Happy Cats
By javafxpert
JJUG Lightning Talk: Grumpy and Happy Cats
Learn some Quantum Party Tricks!
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