Part IV
... • Quantum information is radically different to its classical counterpart. This is because the superposition principle allows for many possible states. • Our inability to measure every property we might like leads to information security, but generalised measurements allow more possibilities than th ...
... • Quantum information is radically different to its classical counterpart. This is because the superposition principle allows for many possible states. • Our inability to measure every property we might like leads to information security, but generalised measurements allow more possibilities than th ...
tions processing as well as in quantum information processing. In anal
... Information is quantized in classical digital informations processing as well as in quantum information processing. In analogy to the classical bit, the elementary quantum of information in quantum information processing is called a qubit. In the first part of this chapter we will learn how qubits c ...
... Information is quantized in classical digital informations processing as well as in quantum information processing. In analogy to the classical bit, the elementary quantum of information in quantum information processing is called a qubit. In the first part of this chapter we will learn how qubits c ...
Resilient Quantum Computation in Correlated Environments: A Quantum Phase Transition Perspective
... Therefore, for a given noise model, one can always engineer an irrelevant flow. Connection to the AKP results.—In Ref. [8], a family of long-ranged noise models with interactions between qubits was studied. AKP considered a power law interaction between any two qubits at positions x1 and x2 of the c ...
... Therefore, for a given noise model, one can always engineer an irrelevant flow. Connection to the AKP results.—In Ref. [8], a family of long-ranged noise models with interactions between qubits was studied. AKP considered a power law interaction between any two qubits at positions x1 and x2 of the c ...
High-fidelity Z-measurement error encoding of optical qubits
... states are robust against accidental Z measurement. The encoding of Eq. 共1兲 also forms the basic element in a redundancy code, which can be used to correct for photon loss errors 关23兴: 兩典LL = ␣兩0典L兩0典L + 兩1典L兩1典L. For these reasons it is important to show that qubit states can be encoded with high ...
... states are robust against accidental Z measurement. The encoding of Eq. 共1兲 also forms the basic element in a redundancy code, which can be used to correct for photon loss errors 关23兴: 兩典LL = ␣兩0典L兩0典L + 兩1典L兩1典L. For these reasons it is important to show that qubit states can be encoded with high ...