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Atom-based electromagnetic field sensing (Conference Presentation)

James P. Shaffer

Atom-based electromagnetic field sensing was recorded at Photonics West 2020 in San Francisco, California.

Optical and Quantum Sensing and Precision Metrology IIMar 27, 20204 citations

Recent results on gravitational decoherence and collapse (Conference Presentation)

Angelo Bassi

This Conference Presentation, Recent results on gravitational decoherence and collapse, was recorded at Photonics West 2020 held in San Francisco, United States.

Optical and Quantum Sensing and Precision Metrology IIMar 9, 20200 citations

Present and future precision tests of spontaneous wave function collapse models

Angelo Bassi

Quantum mechanics is grounded on the superposition principle, which is the source both of its tremendous success and technological power, as well as of the problems in understanding it. The reason why superpositions do not propagate from the microscopic to the macroscopic world are unclear. Spontaneous wave function collapse models have been formulated to take into account a progressive breakdown of quantum superpositions when systems are large enough; they do so by modifying the Schrödinger dynamics, and therefore they are empirically testable. Deviations are tiny, and require precision measurements. I will review the most recent tests of such models, spanning from optomechanical to underground experiments. I will conclude by presenting possible future experiments.Quantum mechanics is grounded on the superposition principle, which is the source both of its tremendous success and technological power, as well as of the problems in understanding it. The reason why superpositions do not propagate from the microscopic to the macroscopic world are unclear. Spontaneous wave function collapse models have been formulated to take into account a progressive breakdown of quantum superpositions when systems are large enough; they do so by modifying the Schrödinger dynamics, and therefore they are empirically testable. Deviations are tiny, and require precision measurements. I will review the most recent tests of such models, spanning from optomechanical to underground experiments. I will conclude by presenting possible future experiments.

Optical and Quantum Sensing and Precision MetrologyMar 4, 20210 citations

Precision tests of models of spontaneous wave function collapse

Angelo Bassi

Quantum mechanics is grounded on the superposition principle, which is the source both of its tremendous success and technological power, as well as of the problems in understanding it. The reason why superpositions do not propagate from the microscopic to the macroscopic world are subject to debate. Spontaneous wave function collapse models have been formulated to take into account a progressive breakdown of quantum superpositions when systems are large enough; they do so by modifying the Schrödinger dynamics, and therefore they are empirically testable. Deviations are tiny, and require precision measurements. I will review collapse models, and present the most recent experimental tests.Quantum mechanics is grounded on the superposition principle, which is the source both of its tremendous success and technological power, as well as of the problems in understanding it. The reason why superpositions do not propagate from the microscopic to the macroscopic world are subject to debate. Spontaneous wave function collapse models have been formulated to take into account a progressive breakdown of quantum superpositions when systems are large enough; they do so by modifying the Schrödinger dynamics, and therefore they are empirically testable. Deviations are tiny, and require precision measurements. I will review collapse models, and present the most recent experimental tests.

Optical and Quantum Sensing and Precision Metrology IIMar 8, 20230 citations

Collapse models and gravitational decoherence at test: how far can we push the limits of quantum mechanics?

Matteo Carlesso

Collapse models describe the breakdown of the quantum superposition principle when moving from microscopic to macroscopic scales. They are among the possible solutions to the quantum measurement problem and thus describe the emergence of classical mechanics from the quantum one. Testing collapse models is equivalent to test the limits of quantum mechanics. I will provide an overview on how one can test collapse models, and which are the future theoretical and experimental challenges ahead.

arXiv:2303.05284Optical and Quantum Sensing and Precision Metrology IIMar 8, 20230 citations

Attosecond-resolution optical path evaluation and sensing using quantum optical interferometry with dispersion cancellation (Conference Presentation)

Alexander V. Sergienko

Attosecond-resolution optical path evaluation and sensing using quantum optical interferometry with dispersion cancellation was recorded at Photonics West 2020 in San Francisco, California.

Optical and Quantum Sensing and Precision Metrology IIMar 27, 20200 citations

Testing collapse models for macroscopic quantum superpositions using an atomic interferometer without entanglement (Conference Presentation)

Abstract

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Testing collapse models for macroscopic quantum superpositions using an atomic interferometer without entanglement (Conference Presentation)

Abstract

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