Quantifying the particle aspect of quantum systems
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2018
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| _version_ | 1866909463273799680 |
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| author | Das, Sreetama Chakrabarty, Indranil Pati, Arun Kumar De, Aditi Sen Sen, Ujjwal |
| author_facet | Das, Sreetama Chakrabarty, Indranil Pati, Arun Kumar De, Aditi Sen Sen, Ujjwal |
| contents | The possibility of a quantum system to exhibit properties that are akin to both the classically held notions of being a particle and a wave, is one of the most intriguing aspects of the quantum description of nature. These aspects have been instrumental in understanding paradigmatic natural phenomena as well as to provide nonclassical applications. A conceptual foundation for the wave nature of a quantum state has recently been presented, through the notion of quantum coherence. We introduce here a parallel notion for the particle nature of a quantum state of an arbitrary physical system. We provide elements of a resource theory of particleness, and give a quantification of the same. Finally, we provide evidence for a complementarity between the particleness thus introduced, and the coherence of an arbitrary quantum state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1812_08656 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Quantifying the particle aspect of quantum systems Das, Sreetama Chakrabarty, Indranil Pati, Arun Kumar De, Aditi Sen Sen, Ujjwal Quantum Physics The possibility of a quantum system to exhibit properties that are akin to both the classically held notions of being a particle and a wave, is one of the most intriguing aspects of the quantum description of nature. These aspects have been instrumental in understanding paradigmatic natural phenomena as well as to provide nonclassical applications. A conceptual foundation for the wave nature of a quantum state has recently been presented, through the notion of quantum coherence. We introduce here a parallel notion for the particle nature of a quantum state of an arbitrary physical system. We provide elements of a resource theory of particleness, and give a quantification of the same. Finally, we provide evidence for a complementarity between the particleness thus introduced, and the coherence of an arbitrary quantum state. |
| title | Quantifying the particle aspect of quantum systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/1812.08656 |