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- 1. THE HOLY GRAIL OF SCIENCE! PRESENTED BY : DHANITH KRISHNA.B & SABEER SHA . S S1S2-CS , MCETACME 2011 1
- 2. ACME 2011 2
- 3. ACME 2011 3
- 4. Computing governed by Quantum mechanics. Makes use of Quantum Entanglement and Superposition. Basic building block is a Quantum bit (Qubit) Bit Qubit Quantum SuperpositionACME 2011 4
- 5. DecoherenceACME 2011 5
- 6. DecoherenceACME 2011 6
- 7. ACME 2011 7
- 8. 100 011 Quantum 110 101 F(x) 001 000 Processor 100 111 Input Output We make simple Quantum gates and connect them to form Quantum networks. Quantum gates support certain new operations in addition to classical computational operations.ACME 2011 8
- 9. Design RealizationsProposed Quantum Computer DiVincenzo Criteria Architectures: Computer uses accurate quantum gates and quantum logic. Physically scalable (Qubits can be increased). Qubits can be initialized to some values. Has means of reading Qubits. Operates much faster than Decoherence time. ACME 2011 9
- 10. •A Qubit register of L •Faster switching. •Supports entirely new Qubits are equivalent •Quantum Computers algorithms with no to 2L classical registers consume lesser classical analogs. operating in parallel. energy. •2L computations per single step. Quantum Quantum Efficiency Parallelism Algorithms •True Randomness •Every object in this •Simulation helps in helps in various universe , in some drug development. cryptographic sense is a Quantum •Simulation helps in purposes. computer. study of Quantum •CYBORGs could be Mechanics. made. True Artificial Molecular Randomness Intelligence SimulationACME 2011 10
- 11. Theoreticians dream Need of technologies for Problem of better scaling & Decoherence. Interconnection. Need for advancement in Quantum Error Nanotechnology Handling and & Quantum Gate accuracy. softwares.ACME 2011 11
- 12. NMR based Dwave two Qubit – Vesuvius Peter Shors Computer. computer first (512 Quantum Qubit). Deutschs Algorithm. Universal Quantum Richard Computer. Feynmans model ofACME 2011 quantum 12 computer.
- 13. All quantum computers to date are fancy laboratory ideas! No one knows if we will be able to make a Quantum computer suitable for real life use in near future. At the same time researchers understand the boost that Quantum computers are goanna provide us if ever we could make one. Several technical problems will delay the realization of a quantum computer atleast by a few decades. Though its realization is a nightmare , optimism might do wonders.ACME 2011 13
- 14. http://plato.stanford.edu/ on Progress in Physics’, vol 61 (1998). A.M. Steane, ‘Reports http://qubit.org http://cam.qubit.org pour les calculateurs by A. Barenco, A.Ekert, A. Sanpera and C. Machiavello appeared in ‘La Un saut dechelle Recherche ‘November 1996.Adapted by A. Barenco, updated by M. Aulbach. http://dsd.lbl.gov http://www.media.mit.edu/quanta/quanta-web/index.html http://www.howstuffworks.com/ Leah Henderson and Vlatko Vedral. ‘Quantum Entanglement’ by http://www.iqc.ca/ http://www.physics.unlv.edu http://ieee.spectrum.org Of David Deutsch. The Video Lectures http://wikipedia.org ‘Experimental Realization of Shor’s Quantum Factoring Algorithm’ by M. Steffen,L.M.K.Vandersypen,G. Breyta,C.S.Yannoni,M.Sherwood,L.Chuang. ‘Quantum Computers’ by Todd A. Brun. ‘Quantum Computers’ by Osama Awwad. ‘Introduction to Quantum Computation’ by Neil Shenvi. General Nanocomputing by Simon Benjamin and Artur Ekert.ACME 2011 14

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