Phase Space Representation of the Density Operator: Bopp Pseudodifferential Calculus and Moyal Product

• URL: http://arxiv.org/abs/2411.14391v2
• Date: Fri, 29 Nov 2024 09:33:57 GMT
• Title: Phase Space Representation of the Density Operator: Bopp Pseudodifferential Calculus and Moyal Product
• Authors: Maurice de Gosson,
• Abstract summary: Bopp shifts, introduced in 1956, played a pivotal role in the statistical interpretation of quantum mechanics.<n>In this paper, we both review and expand on our exploration of Bopp quantization, emphasizing its relationship with the Moyal product and its applications in elementary deformation quantization.
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• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Bopp shifts, introduced in 1956, played a pivotal role in the statistical interpretation of quantum mechanics. As demonstrated in our previous work, Bopp's construction provides a phase-space perspective of quantum mechanics that is closely connected to the Moyal star product and its role in deformation quantization. In this paper, we both review and expand on our exploration of Bopp quantization, emphasizing its relationship with the Moyal product and its applications in elementary deformation quantization. Notably, we apply these constructions to the density operator, which represents mixed states in quantum mechanics, offering novel insights into its role within this framework.

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