2. Quantum Computers TAUKI TAHMID BRAC UNIVERSITY ID: 15101051

3. MORE TRANSISTORS = MORE POWER Center of the CPU, current state

4. “The number of transistors on a chip will approximately double every 24 months” -- Gordon Moore, Intel Co-Founder

5. Quantum Computing QBITS QUANTUM SUPER POSITION

6. Bits (classical computing)  A bit can exist only in one state Either 0 or 1  Information behaviour : one single direction  Logic gates are irreversible 00101011101010101010111010101111111010010010101010010101000000000011010011101010

7. Bloch Sphere representation of a QBIT a two-state quantum-mechanical system  Can exist as 0 or 1 or coherent superposition of both  Operation on a qubit effectively acts on both values at a same time  An exist in both values simultaneously QUBITS/QBITS

8. BITS QBITS 1 BIT1 QBITS 0 OR 1 0 AND 1 AT A TIME 1 ON/TRUE 0 OFF/FALSE

9. Using transistors

10. Processors Classical processors Each processor perform one computation,while other processors do other computations Quantum processors Single processor can perform multiple computations on its own simultaneously

12. One day, a 2^500 qubit computer will be able to calculate more data than there's atom in our observable universe

13. Representation of Data - Superposition  A single qubit can be forced into a superposition of the two states denoted by the addition of the state vectors: |  > =  |0> +  |1>  Where  and  are complex numbers and |  | + |  | = 1

17. Quantum computer  Use direct use of quantum mechanical phenomena  Utilizes quantum properties to represent data  Could solve certain problems much faster

18. ...... Steps a conventional computer will take to determine where to shoot the ball 0 < y < 100 Steps a quantum computer will take to dertermine where to shoot

19. ● In 1981, German Mathematician Yuri Manin first introduced the idea of Quantum computers ● A year later, eminent physicist Richard Faynmann presented a logical model at the conference on physics and computerization but his model rested in the conviction that it would be impossible to simulate the calculations through a classical computer ● But Faynman's lectures from the last years of his scientific research is now considered by many to be the key moments HISTORY Richard Faynmann Yuri Manin

20. Photograph of a chip constructed by D-Wave Systems Inc

21. D~WAVE 2X

22. FIN