Details
| Original language | English |
|---|---|
| Title of host publication | Modified and Quantum Gravity |
| Subtitle of host publication | From Theory to Experimental Searches on All Scales |
| Editors | Christian Pfeifer, Claus Lämmerzahl |
| Place of Publication | Cham |
| Chapter | 16 |
| Pages | 491-550 |
| Number of pages | 60 |
| ISBN (electronic) | 978-3-031-31520-6 |
| Publication status | Published - 1 Oct 2023 |
Publication series
| Name | Lecture Notes in Physics |
|---|---|
| Publisher | Springer |
| Volume | 1017 |
| ISSN (Print) | 0075-8450 |
| ISSN (electronic) | 1616-6361 |
Abstract
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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Modified and Quantum Gravity: From Theory to Experimental Searches on All Scales. ed. / Christian Pfeifer; Claus Lämmerzahl. Cham, 2023. p. 491-550 (Lecture Notes in Physics; Vol. 1017).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research
}
TY - CHAP
T1 - Coupling Quantum Matter and Gravity
AU - Giulini, Domenico
AU - Großardt, André
AU - Schwartz, Philip K.
N1 - Funding information: A. G. acknowledges funding from the VolkswagenStiftung. D. G. and P. K. S. acknowledge support from the Deutsche Forschungsgemeinschaft via the Collaborative Research Centre 1227 ‘DQ-mat’, projects A05 and B08, at Leibniz University Hannover. All three authors would like to thank the organisers of the 740th WE-Heraeus-Seminar ‘Experimental Tests and Signatures of Modified and Quantum Gravity’ for the opportunity to present and discuss the topics which laid the foundation for this work.
PY - 2023/10/1
Y1 - 2023/10/1
N2 - In this contribution we deal with several issues one encounters when trying to couple quantum matter to classical gravitational fields. We start with a general background discussion and then move on to two more technical sections. In the first technical part we consider the question how the Hamiltonian of a composite two-particle system in an external gravitational field can be computed in a systematic post-Newtonian setting without backreaction. This enables us to reliably estimate the consistency and completeness of less systematic and more intuitive approaches that attempt to solve this problem by adding ‘relativistic effects’ by hand. In the second technical part we consider the question of how quantum matter may act as source for classical gravitational fields via the semiclassical Einstein equations. Statements to the effect that this approach is fundamentally inconsistent are critically reviewed.
AB - In this contribution we deal with several issues one encounters when trying to couple quantum matter to classical gravitational fields. We start with a general background discussion and then move on to two more technical sections. In the first technical part we consider the question how the Hamiltonian of a composite two-particle system in an external gravitational field can be computed in a systematic post-Newtonian setting without backreaction. This enables us to reliably estimate the consistency and completeness of less systematic and more intuitive approaches that attempt to solve this problem by adding ‘relativistic effects’ by hand. In the second technical part we consider the question of how quantum matter may act as source for classical gravitational fields via the semiclassical Einstein equations. Statements to the effect that this approach is fundamentally inconsistent are critically reviewed.
UR - http://www.scopus.com/inward/record.url?scp=85174991949&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-31520-6_16
DO - 10.1007/978-3-031-31520-6_16
M3 - Contribution to book/anthology
SN - 978-3-031-31519-0
T3 - Lecture Notes in Physics
SP - 491
EP - 550
BT - Modified and Quantum Gravity
A2 - Pfeifer, Christian
A2 - Lämmerzahl, Claus
CY - Cham
ER -