Physics:Quantum zero-point energy: Difference between revisions

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{{Short description|Quantum matter topic related to quantum zero-point energy}}
{{Short description|Lowest possible energy of a quantum system}}


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'''Quantum zero-point energy''' is a topic in quantum matter and quantum physics.
'''Quantum zero-point energy''' is the lowest possible energy of a quantum system. It appears because quantum systems cannot generally have all conjugate variables vanish simultaneously, even in their ground state.<ref>{{cite web |title=Zero-point energy |url=https://en.wikipedia.org/wiki/Zero-point_energy |website=Wikipedia |access-date=20 May 2026}}</ref><ref>{{cite book |last=Wald |first=Robert M. |title=General Relativity |publisher=University of Chicago Press |year=1984 |id=ISBN 978-0-226-87033-5}}</ref>
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[[File:Quantum_zero_point_energy_yellow.png|thumb|280px|Zero-point energy: lowest possible quantum energy.]]
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== Overview ==
== Conceptual role ==
This page is a starter article for the Quantum Collection. It should describe the role of '''Quantum zero-point energy''' in the study of quantum matter, particles, fields, vacuum structure, or spacetime.
This topic lies at the boundary between quantum field theory, relativity, cosmology, and the foundations of measurement. It clarifies what is meant by fields, particles, vacuum, and geometry.<ref>{{cite book |last=Wald |first=Robert M. |title=General Relativity |publisher=University of Chicago Press |year=1984 |id=ISBN 978-0-226-87033-5}}</ref>
 
== Open questions ==
The main unresolved issues concern how geometry, vacuum structure, horizons, and quantum states behave when gravitational and quantum effects are simultaneously important.<ref>{{cite book |last=Rovelli |first=Carlo |title=Quantum Gravity |publisher=Cambridge University Press |year=2004 |id=ISBN 978-0-521-83733-0}}</ref>


=See also=
=See also=
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{{Author|Harold Foppele}}
{{Author|Harold Foppele}}


{{Sourceattribution|Quantum zero-point energy|1}}
{{Sourceattribution|Physics:Quantum zero-point energy|1}}

Revision as of 22:04, 19 May 2026


← Back to Vacuum and spacetime

Quantum zero-point energy is the lowest possible energy of a quantum system. It appears because quantum systems cannot generally have all conjugate variables vanish simultaneously, even in their ground state.[1][2]

Zero-point energy: lowest possible quantum energy.

Conceptual role

This topic lies at the boundary between quantum field theory, relativity, cosmology, and the foundations of measurement. It clarifies what is meant by fields, particles, vacuum, and geometry.[3]

Open questions

The main unresolved issues concern how geometry, vacuum structure, horizons, and quantum states behave when gravitational and quantum effects are simultaneously important.[4]

See also

Table of contents (84 articles)

Index

Full contents

References

  1. ↑ "Zero-point energy". https://en.wikipedia.org/wiki/Zero-point_energy. 
  2. ↑ Wald, Robert M. (1984). General Relativity. University of Chicago Press. ISBN 978-0-226-87033-5. 
  3. ↑ Wald, Robert M. (1984). General Relativity. University of Chicago Press. ISBN 978-0-226-87033-5. 
  4. ↑ Rovelli, Carlo (2004). Quantum Gravity. Cambridge University Press. ISBN 978-0-521-83733-0. 


Author: Harold Foppele


Source attribution: Physics:Quantum zero-point energy

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