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quanta

quanta. Isaac Chuang. Aram Harrow, Andrew Houck, Steve Huang, Murali Kota, Geva Patz, Matthias Steffen, Andrew Childs * , Jeff Brock, Terri Yu. MIT Center for Bits and Atoms. What happens when 1 bit = atom?. i386. The Quantum Limit. 2020. 1 nanometer. 1986. 1879. 1 inch. 1 micrometer.

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quanta

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  1. quanta • Isaac Chuang Aram Harrow, Andrew Houck, Steve Huang, Murali Kota, Geva Patz, Matthias Steffen, Andrew Childs*, Jeff Brock, Terri Yu MIT Center for Bits and Atoms

  2. What happens when 1 bit = atom? i386 The Quantum Limit 2020 1 nanometer 1986 1879 1 inch 1 micrometer

  3. Quantum Information & Quantum Computation • Challenges we are working on: • Large-scale QC? • New cryptographic primitives • Education

  4. 15 = 3 x 5 Quantum Factoring ( Vandersypen, Steffen, Breyta Sherwood, Yannoni, and Chuang, Nature, Dec. 2001 ) T2 > 0.3 sec ~ 200 gates • First demonstration of Shor’s factoring algorithm • The Molecule CNN,

  5. Polymers as quantum computers ( Majornska, Kubinec, Chuang, J. Chem. Phys., Mar 2000 ) • Nuclear spins of 31P in Si • Electron spins with SiGe FET’s ( Kane, Nature 393, p133, 1998 ) ( Yablonovitch, quant-ph 9905096 ) Large-Scale QC

  6. Quantum Supercomputers? • IEEE Computer: Jan 2002, p 79

  7. General-Purpose QC Architecture Spin Polarized Electrons • Teleportation connects comp. units • Self-refreshing memory • Parallel quantum ALU • Classical microprocessor control • Dynamic compilation • Scheduling Classical Microprocessor Qubits EX Pur EPR Classical Bus Quantum Bus

  8. Provably secure communication system for times when “Pretty Good” Privacy just isn’t good enough • Quantum software: single-use! ( Gottesman and Chuang, Nature, Nov. 25, 1999 ) • Quantum Digital Signatures • Provably secure message authentication Quantum Information • Quantum bits cannot be copied!

  9. Education & Outreach • How do we train a new generation of quantum information scientists? • Teaching materials • HP/MIT QC course • MAS.961 / 8.371J course • MIT 8.14 Junior Experimental Lab

  10. Quantum Information Processing MIT Junior Physics Laboratory Spring, 2002 Experiment #42 Purpose This experiment will let you perform a series of simple quantum computations on a two spin system, demonstrating one and two quantum-bit quantum logic gates, and a circuit implementing the Deutsch-Jozsa quantum algorithm History • Founded by Prof. David Cory • Ran at MIT Media Laboratory this year • Permanent Phys. Dept. setup under construction

  11. Accomplishments • 10 undergraduates ran experiments • Most popular unit in class • First new experiment in >4 years • Coordinated with undergrad QM class Quantum Information Processing MIT Junior Physics Laboratory Spring, 2002 Experiment #42 Purpose This experiment will let you perform a series of simple quantum computations on a two spin system, demonstrating one and two quantum-bit quantum logic gates, and a circuit implementing the Deutsch-Jozsa quantum algorithm

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