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Version 8, 23-Apr-04 Mirror inversion of quantum states in linear registers
 

Summary: Version 8, 23-Apr-04
Mirror inversion of quantum states in linear registers
Claudio Albanese,1, 2,
Matthias Christandl,3,
Nilanjana Datta,4,
and Artur Ekert3, 5,
1
Department of Mathematics Imperial College, London, SW7 2AZ, UK
2
Department of Mathematics, National University of Singapore, Singapore 117 543, Singapore
3
Centre for Quantum Computation, DAMTP, University of Cambridge, Cambridge CB3 0WA, UK
4
Statistical Laboratory, DPMMS, University of Cambridge, Cambridge CB3 0WB, UK
5
Department of Physics, National University of Singapore, Singapore 117 542, Singapore
Transfer of data in linear quantum registers can be significantly simplified with pre-engineered
but not dynamically controlled inter-qubit couplings. We show how to implement a mirror inversion
of a quantum state of qubits with respect to the centre of the register. Our construction is especially
appealing as it requires no dynamical control over individual inter-qubit interactions. If, however, the

  

Source: Albanese, Claudio - Department of Mathematics, King's College London

 

Collections: Mathematics