Transformation of computing era with Quantum Computing

By admin
  August 23, 2022  / 
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The physics of the smallest or discrete unit is called quantum mechanics theory. It redefines our conception of nature by providing an explanation and forecast for the behavior of atoms and molecules. Despite being the most accurate description of the universe, we have, it nonetheless predicts unexpected, frequently counterintuitive behaviors.

The topic of quantum research is being advanced, and new quantum applications are being discovered as researchers learn how to harness and control these behaviors. One such application of quantum theory is quantum computing.


Quantum Theory

According to his theory, a particle is whatever it is measured to be; yet, unless a particle is examined, it cannot be considered to have any special characteristics or even to exist. This pertains to the superposition principle. Superposition states that, as long as we don’t look to see what an object’s state is, it is truly concurrently in all of its conceivable states while we don’t know what that state is. Planck’s quantum theory also called the quantum theory of radiation is the basis of quantum computing.


Quantum Computing

Quantum Computing allows computers to be in more than one state. It follows the concept of quantum physics. Traditional computing decodes any information into either 0 or 1. Quantum computing uses quantum bits or qubits that can be in more than one state (0 and 1 at the same time).

Quantum computing works on two concepts, Superpositions, and Entanglement. To define quantum theory, it is necessary to explain these three concepts.

Concept of Superposition

A qubit can be compared to an electron in a magnetic field. The spin of the electron can either be aligned with the field, known as a spin-up state, or it can be offset from the field, known as a spin-down state. An energy pulse, such as one from a laser, can be used to shift the electron’s spin from one state to another. When a particle is isolated from all outside forces and only half a unit of laser energy is applied, the particle enters a superposition of states. acting as if it were concurrently in both states.

Concept of Entanglement

Entanglement is a concept of correlation. In this, two qubits are present in the same quantum state, and changing the state of one qubit changes the state of another, even if the qubits are placed at a distance. Entanglement is the reason for the power of quantum computing. In classical computing, doubling bits doubles up the processing power but in quantum computing, adding qubits significantly increases its power. Entanglement is a powerful phenomenon because having the information of one qubit gives you the information of the entangled qubits as well and changing the state of one qubit changes the state of the other qubit instantly. It improves the speed of quantum processing significantly.


Classical Computing vs Quantum Computing

Information is processed differently on quantum computers and classic computers. Transistors, which are either 1 or 0, are used in conventional computers. Qubits, which can simultaneously be 1 or 0, are used in quantum computers. The quantum computing capacity exponentially grows with the number of linked qubits. The power is only increased linearly when more transistors are connected together.

Classic computers are great for simple tasks that do not require high computational powers. Quantum computer uses can include high computational tasks like running simulations and data analysis.

Potentials of Quantum Computing

With the ability to compute faster and with better accuracy, quantum computing can revolutionize industrial workflow. It can empower machine learning, and artificial intelligence, benefit financial modeling and accelerate digital innovations. Being connected with the theory of sub-atomic particles, quantum computing has the potential to transform chemical engineering and material science. It will also help medical researchers to understand diseases better and discovers medicines and vaccines that are more effective and efficient. Quantum Computing explained the

The Perils of Quantum Computing

Having a robust computational system can showcase serious threats as well. The most predictable threat of quantum computers is security threats. Cryptography works on 3 basic algorithms, symmetric keys, asymmetric keys, and hash functions. In Symmetric Keys, the data is encrypted and decrypted with a single key, and in asymmetric keys, the data is encrypted and decrypted with 2 keys (one public and one private). All the authentications, digital signatures, and other data security-related operations are performed through asymmetric keys. Hash functions provide a unique set of bytes to store information. These functions are used to save passwords and other sensitive information.

Having a computer that has the potential of solving computational operations in minutes can increase the threats to the current cybersecurity systems. The digital computers used today cannot break the security algorithms of today’s cryptography, but it is predictable that quantum computers will be able to break these algorithms in minutes.


Quantum Computing FAQs

1. Can I run classical programs on quantum computers?

Ans. No. Quantum hardware vendors have made software development kits available to work with their systems. However, these kits are designed to build new quantum programs from the lowest hardware level coding. This requires extensive expertise in quantum architecture, math, and physics to get right.

2. Do I need a quantum computer to run quantum programs?

Ans. Not with QCI and Qatalyst. QCI, enabled by AWS, is delivering the first complete SAAS solution for quantum computing that doesn’t require quantum experts to program new software. Nor does it require low-level hardware programming to access quantum processors. You get fast, straightforward access to the software and hardware you need to use quantum power to drive computational results. No quantum expertise or on-premise investment is needed.

3. What is a Quantum Gate?

Ans. A classical logic gate is any physical system that takes binary inputs (0s and 1s) and delivers a single binary result. In quantum logic gates, you have a system that takes multi-dimensional inputs, and you have a diversity of probabilistic results, including superposition (a variable in multiple states at once).

4. Is it hard to build quantum Programs?

Ans. Quantum computing is an entirely new paradigm. It requires significant new skills and knowledge to even begin to understand. Here’s what you need to expect when beginning to write quantum software using a raw SDK-

  • Learn the basics of quantum
  • Quantum-optimize the problem, create quantum circuits and gates, and low-level coding for specific hardware
  • Tune and continue to optimize to get quality results

5. What is a quantum circuit?

Ans. Quantum algorithms are called quantum circuits. Quantum circuits are composed of elementary quantum gates, much like classical circuits and composed of classical gates.


  • How will quantum computing Change computing?

    Quantum computers: Eight ways quantum computing is going to change the world Discovering new drugs. Creating better batteries. . Predicting the weather. Picking stocks. Processing language. Helping to solve the travelling salesman problem. Reducing congestion. Protecting sensitive data.

  • What is the difference between computing and quantum computing?

    The big difference compared to a classical computer is that a quantum computer is following a different rule set. It's not using zeros and ones like classical computers are – bits and bytes – but it is actually able to work with something called qubits

  • What is the benefit of quantum computing?

    Ultimately, quantum computers have the potential to provide computational power on a scale that traditional computers cannot ever match. In 2019, for example, Google claimed to carry out a calculation in about 200 seconds that would take a classical supercomputer around 10,000 years. They can solve complex problems

  • What are the advantages and disadvantages of quantum computing?

    Quantum computers have potential to benefit society in various ways, including making smarter investment decisions, developing drugs and vaccines faster and revolutionizing transportation. However, one disadvantage of quantum computing is that it could break current cryptography.

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