Quantum computing

QUANTUM COMPUTING
PRESENTED BY:
 Pooja Koshti
 Harshavardhan Talele
MSBTE SPONSORED TPP AT VESP

OUTLINES
 Introduction
 Features
 Quantum Algorithm & Gates
 Advantages & Disadvantages
 Current Applications
 Future Scope
 Conclusion

INTRODUCTION
 Quantum computing is computing using quantum-
mechanical phenomena, such as superposition and
entanglement.
 Classical computers-only 2 states-0 & 1-limited
operations.
 Quantum computers-3 states-0, 1, superposition.
 Emerging concept and enhanced performance.

FEATURES
 Qubit
 Superposition
 Entanglement
 Interference
 Fault Tolerance

QUANTUM ALGORITHMS
 Shor’s Algorithm:
It solves the discrete logarithm problem, the integer factorization problem
in polynomial time as compared to classical computers that require super
polynomial time for same.
O((log N)2(log log N)(log log log N))
 Grover’s Algorithm:
It is used for searching in an unsorted database. Being probabilistic,
Grover's Algorithm helps to provides quadratic speedup only instead of
exponential speedup as compared to classical computers.
O(N1/2)

QUANTUM LOGIC GATES
 Hadamard Gate
 Controlled-NOT Gate
 Pauli X Gate
 Pauli Y Gate
 Pauli Z Gate

ADVANTAGES
 Information storage
 Manipulation of information
 Faster Execution
 Has not been totally invented yet.
 Very hard temperature to maintain the
control
 Quantum processes are very unstable
DISADVANTAGES

CURRENT APPLICATIONS
 Artificial Intelligence
 Cryptography
 Quantum Simulation

FUTURE SCOPE
 Quantum internet
 Weather Forecasting
 Quantum Computer Chip

CONCLUSION
 Quantum Computing is a new developing technology that is tremendously
flourishing.
 This is because of it’s amazing features which makes it an edge over other
technologies.
 Hence, it can be used in more efficient manner in complex tasks.

REFERENCES
1. https://qilimanjaro.io/static/whitepaper.pdf
2. https://www.zeiss.com/content/dam/Corporate/innovation_and_technology/downloads/zeiss-
symposium_whitepaper_qc_qcom.pdf
3. https://arxiv.org/pdf/1804.00200.pdf
4. https://uncw.edu/phy/documents/SizemoreTalk.pdf
5. Imre, Sandor, and Ferenc Balazs. Quantum Computing and Communications: an engineering
approach. John Wiley & Sons, 2005
6. Peter W. Shor "Algorithms for Quantum Computation: Discrete Logarithms and Factoring",
inProc. 35'h Annual IEEE Symposium on Fundamentals of Computer SCiences, I 994, p. 124-1 34.

THANK YOU

Quantum computing

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