Presentation quantum computers
- 1. QUANTUM COMPUTERS SYED AZEEM AHMED ROLL NO-1705421021 BRANCH-EN(3)
- 2. ïȘ WHAT IS QUANTUM COMPUTERS? ïȘ HISTORY OF DEVELOPMENT ïȘ HOW QUANTUM COMPUTERS WORK ïȘ WHAT IS QUBIT? ïȘ DIFFERENCE BETWEEN DIGITAL AND QUANTUM COMPUTERS ïȘ THE PROBLEM FACED WITH QUANTUM COMPUTERS ïȘ ADVANTAGES OF QUANTUM COMPUTERS ïȘ DISADVANTAGES OF QUANTUM COMPUTERS ïȘ APPLICATION OF QUANTUM COMPUTERS ïȘ CONCLUSION CONTENTS
- 3. A quantum computer is a machine that performs calculations based on the laws of quantum mechanics, With the help of behavior of fundamental particles (photon) at the sub-atomic level. A Quantum is a smallest possible discrete unit of any physical property WHAT IS QUANTUM COMPUTER
- 4. ïȘ 1982 - Feynman proposed the idea of creating machines based on the laws of quantum mechanics instead of the laws of classical physics. ïȘ 1985 - David Deutsch developed the quantum Turing machine, showing that quantum circuits are universal. ïȘ 1994 - Peter Shor came up with a quantum algorithm to factor very large numbers in polynomial time. ïȘ 1997 - LovGrover develops a quantum search algorithm HISTORY OF DEVELOPMENT
- 5. A quantum computer works with particles that can be in superposition. Rather than representing bits such particles would represent qubits, which can take on the value 0, or 1, or both simultaneously. HOW QUANTUM COMPUTERS WORKS?
- 6. ïȘ A qubit is a quantum bit. As a bit is the basic unit of information in a classical computer, a qubit is the basic unit of information in a quantum computer. A physical implementation of a Qubit could use the two energy levels of an atom. An excited representing |1> and a ground state representing |0>. So these qubits are use as a basic units WHAT IS QUBITS ?
- 7. DIFERENCE BETWEEN DIGITAL AND QUANTUM COMPUTERS
- 8. DECOHERENCE: ïȘ The biggest problem. States that if a coherent (superposed) state interacts with the environment, it falls into a classical state without superposition. ïȘ So quantum computer to work with superposed states, it has to be completely isolated from the rest of the universe (not observing the state, not measuring it..) The problem face with quantum computers
- 11. ïȘ Artificial intelligence A primary application for quantum computing is artificial intelligence (AI). AI is based on the principle of learning from experience, becoming more accurate as feedback is given, until the computer program appears to exhibit âintelligence.â This feedback is based on calculating the probabilities for many possible choices, and so AI is an ideal candidate for quantum computation. ïȘ Weather Forecasting Director of engineering at Google Hartmut Neven also noted that quantum computers could help build better climate models that could give us more insight into how humans are influencing the environment. APPLICATIONS OF QUANTUM COMPUTERS
- 12. ïȘ Financial Model Quantum computing help the investors or analyst to get better knowledge of market fluctuation ïȘ Cyber Security Various techniques to combat cyber security threats can be developed using some of the quantum machine learning approaches mentioned above to recognize the threats earlier and mitigate the damage that they may do. ïȘ Drug Design Due to faulty simulation or high cost many drugs are not design but by the use of quantum simulation technique it is possible to design of such drugs very easily
- 13. ïȘ Quantum computer has more to offer. ïȘ Advantages outweighs disadvantages. ïȘ Wide range of applications. ïȘ If we built this computer then it would revolutionized our human society CONCLUSION
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