Journal
ENTROPY
Volume 24, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/e24040527
Keywords
probability distributions; Bell states; qubits; symplectic tomogram; linear entropy
Categories
Funding
- Russian Science Foundation [1971-10091]
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This paper discusses the application of superposition states of two qubits and entangled Bell states in the probability representation of quantum mechanics. It formulates the superposition principle using the nonlinear addition rule of state density matrices and explores the extension of entanglement properties to the case of superposition of two-mode oscillator states using the probability representation of quantum states.
The superposition states of two qubits including entangled Bell states are considered in the probability representation of quantum mechanics. The superposition principle formulated in terms of the nonlinear addition rule of the state density matrices is formulated as a nonlinear addition rule of the probability distributions describing the qubit states. The generalization of the entanglement properties to the case of superposition of two-mode oscillator states is discussed using the probability representation of quantum states.
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