Low-Temperature Coherence Properties of Z2 Quantum Memory, M.Sc. Thesis Sharif University of Technology ; Karimipour, Vahid (Supervisor) ; Memarzadeh Esfahani, Laleh (Supervisor)
Abstract
Quantum memory which stores the coherent information of logical qubits, is an essential ingredient of quantum information processings. Each logical basis should be encoded on macroscopically distinct physical states since otherwise the indistinguishability of logical bases is easily destroyed by local errors.On the other hand, the memory must be able to have superposition of macroscopically distinct states of physical qubits. To maintain such superposition is very difficult. First, if the size of the memory is infinite, such macroscopic superposition is impossible since superposition of different phases is just a classical mixture of them in an infinite system. Second, even in finite...
Cataloging briefLow-Temperature Coherence Properties of Z2 Quantum Memory, M.Sc. Thesis Sharif University of Technology ; Karimipour, Vahid (Supervisor) ; Memarzadeh Esfahani, Laleh (Supervisor)
Abstract
Quantum memory which stores the coherent information of logical qubits, is an essential ingredient of quantum information processings. Each logical basis should be encoded on macroscopically distinct physical states since otherwise the indistinguishability of logical bases is easily destroyed by local errors.On the other hand, the memory must be able to have superposition of macroscopically distinct states of physical qubits. To maintain such superposition is very difficult. First, if the size of the memory is infinite, such macroscopic superposition is impossible since superposition of different phases is just a classical mixture of them in an infinite system. Second, even in finite...
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