Quantum computers is not intended to completely replace “classical” systems – one that you are using like your PDAs. They will not run web browsers, help with opening eBooks, or stream the latest videos from YouTube. Then why is this topic so hot? What are they hoped for? Let us discuss!

Well, first of all, Quantum computing is a technique for advance computing. It is going to offer a fundamentally different way of performing certain calculations. Generally, it is focused around fastening those calculations for which it would take billions of years for a classical computer to perform.

According to IBM- Quantum computers could encourage the development of new breakthroughs in science, medications to save lives, machine learning methods to diagnose illness, materials to make more efficient devices and structures, financial strategies to live well in retirement and algorithms to quickly direct resources such as ambulances.

A new kind of computing

We are thriving on the benefits of classical computing every day. However, there are still some challenges which today’s systems are unable to address. For problems above a certain space and time complexity, we don’t have enough computational power with us to tackle them. To stand a chance at solving some of these problems, we need a new kind of computing. Universal quantum computers leverage the quantum mechanical phenomena of superposition and entanglement to create states that scale exponentially with number of qubits, or quantum bits.

Quantum Computing Fundamentals:

All processing frameworks depends upon a basic ability to store and control information. Current systems manipulate individual bits, which store information in the form of binary states 0 and 1. Quantum computer leverage quantum mechanical phenomena to manipulate information. For achieving this, they rely on quantum bits, or qubits.

There are a couple of various approaches to make a qubit. One strategy utilizes superconductivity to create and maintain a quantum state. To work with these superconducting qubits for broadened timeframes, they must be kept in a ultra-low temperature of freezing. Any heat in the system can introduce error, which is the reason why quantum PCs work at temperatures near absolute zero, colder than the vacuum of space.

Inside a Quantum Computer

  • Qubit Signal Amplifier

One of two amplifying stages is cooled to a temperature of 4 Kelvin.

  • Input Microwave Lines

Attenuation is applied at each stage in the refrigerator in order to protect qubits from thermal noise during the process of sending control and readout signals to the processor.

  • Superconducting Coaxial Lines

In order to minimize energy loss, the coaxial lines that direct signals between the first and second amplifying stages are made out of superconductors.

  • Cryogenic Isolators

Cryogenic isolators enable qubits signals to go forward while preventing noise from compromising qubit quality.

  • Quantum Amplifiers

Quantum amplifiers inside of a magnetic shield capture and amplify processor readout signals while minimizing noise.

  • Cryoperm Shield

The quantum processor sits inside a shield that protects it from electromagnetic radiation in order to preserve its quality.

  • Mixing Chamber

The mixing chamber at the lowest part of the refrigerator provides the necessary cooling power to bring the processor and associated components down to a temperature of 15 mK — colder than outer space.

Quantum computing is redefining what is possible with technology—creating unprecedented possibilities to solve humanity’s most complex challenges. As per the claims made by Microsoft, In the near future, Quantum computers will be able to –

  1. Improve the quality of healthcare and medical research
  2. Secure our data in a quantum future
  3. Tackle chemistry challenges with increased accuracy
  4. Manage resources from various energy sources
  5. Develop next generation financial modelling tools

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