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Quantum computers harness the unique behaviour of quantum physicssuch as superposition entanglement and quantum interferenceand apply it to computing This introduces new concepts to traditional programming methods ID: 910755 Download Presentation
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Presentation on theme: "Quantum computing : rapidly-emerging technology"— Presentation transcript
Slide1
These machines are very different from the classical computers that have been around for more than half a century. Here's a primer on this transformative technology.
Quantum computing
rapidly-emerging
technology
Slide2Why do we need quantum computers?
When scientists and engineers encounter difficult problems, they turn to supercomputers. These are very large classical computers, often with thousands of classical CPU and GPU cores. However, even supercomputers struggle to solve certain kinds of problems.
If a supercomputer gets stumped, that's probably because the big classical machine was asked to solve a problem with a high degree of complexity. When classical computers fail, it's often due to complexity
Slide3Slide4SuperpositionIn superposition, quantum particles are a combination of all possible states. They fluctuate until they are observed and measured. One way to picture the difference between binary position and superposition is to imagine a coin. Classical bits are measured by "flipping the coin" and getting heads or tails. However, if you were able to look at a coin and see both heads and tails at the same time, as well as every state in between, the coin would be in superposition.
Slide5Learn quantum computing programming
Slide6You can explore the world of quantum computing for free on IBM Cloud, and learn to write quantum code – starting with absolutely zero experience. If you're a developer, jump right in by joining the world's largest quantum developer community and
start today
.
IBM's quantum computers are programmed using
Qiskit
(link resides outside of ibm.com), a software development kit in Python.
Qiskit
is free, open source, and accompanied with a comprehensive textbook and semester-length course.
Slide7Introduction to quantum computingTo fully define quantum computing, we need to define some key terms first.
Slide8What is quantum?The quantum in "quantum computing" refers to the quantum mechanics that the system uses to calculate outputs. In physics, a quantum is the smallest possible discrete unit of any physical property. It usually refers to properties of atomic or subatomic particles, such as electrons, neutrinos and photons.
Slide9What is a qubit?
A
qubit
is the basic unit of information in quantum computing.
Qubits
play a similar role in quantum computing as bits play in classical computing, but they behave very differently. Classical bits are binary and can hold only a position of 0 or 1, but
qubits
can hold a superposition of all possible states.
Slide10What is quantum computing?
Quantum computers harness the unique
behaviour
of quantum physics—such as superposition, entanglement and quantum interference—and apply it to computing. This introduces new concepts to traditional programming methods.