A macroscopic delayed-choice quantum eraser using a commercial laser
- URL: http://arxiv.org/abs/2205.14353v4
- Date: Tue, 11 Jun 2024 09:52:15 GMT
- Title: A macroscopic delayed-choice quantum eraser using a commercial laser
- Authors: Byoung S. Ham,
- Abstract summary: In quantum mechanics, quantum superposition is represented by probability amplitudes between mutually exclusive natures.
The delayed-choice quantum eraser is for the post-determination of the photon nature.
The macroscopic delayed-choice quantum eraser is experimentally demonstrated using a continuous wave laser.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The heart of quantum mechanics is quantum superposition between orthogonal bases of a single particle. In the particle nature of quantum mechanics, quantum superposition is represented by probability amplitudes between mutually exclusive natures such as orthogonal polarization bases. The delayed-choice quantum eraser is for the post-determination of the photon nature, raising the cause-effect relation issue. Over the last several decades, quantum erasers have been intensively studied using nearly all kinds of photons. Here, the macroscopic delayed-choice quantum eraser is experimentally demonstrated using a continuous wave laser and discussed for quantum superposition in a macroscopic regime. For this, a noninterfering Mach-Zehnder interferometer composed of two polarizing beam splitters is chosen to manipulate polarization bases of lights and to measure them in a delayed-choice manner via polarization-basis projection.
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