## Real homotopy theory and supersymmetric quantum mechanics

## Abstract

In the context of observing string backgrounds, much work has been devoted to the question of how similar a general quantum field theory (specifically, a two-dimensional superconformal field theory) is to a sigma model. Put differently, one would like to know how well or poorly one can understand the physics of string backgrounds in terms of concepts of classical geometry. Much attention has also been given of late to the question of how geometry can be encoded in a microscopic physical description that makes no explicit reference to space and time. We revisit the first question and review both well-known and less well-known results about geometry and sigma models from the perspective of dimensional reduction to supersymmetric quantum mechanics. The consequences of arising as the dimensional reduction of a *d*-dimensional theory for the resulting quantum mechanics are explored. In this context, we reinterpret the minimal models of rational (more precisely, complex) homotopy theory as certain supersymmetric Fock spaces, with unusual actions of the supercharges. The data of the Massey products appear naturally as supersymmetric vacuum states that are entangled between different degrees of freedom. This connection between entanglement and geometry is, as far as we know, not well known tomore »

- Authors:

- Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy
- Ruprecht-Karls-Univ.Heidelberg, Heidelberg (Germany). Mathematisches Inst.

- Publication Date:

- Research Org.:
- California Inst. of Technology (CalTech), Pasadena, CA (United States)

- Sponsoring Org.:
- USDOE Office of Science (SC)

- OSTI Identifier:
- 1540144

- Alternate Identifier(s):
- OSTI ID: 1458783

- Grant/Contract Number:
- SC0011632

- Resource Type:
- Accepted Manuscript

- Journal Name:
- Journal of Mathematical Physics

- Additional Journal Information:
- Journal Volume: 59; Journal Issue: 7; Journal ID: ISSN 0022-2488

- Publisher:
- American Institute of Physics (AIP)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- Physics

### Citation Formats

```
Kim, Hyungrok, and Saberi, Ingmar. Real homotopy theory and supersymmetric quantum mechanics. United States: N. p., 2018.
Web. doi:10.1063/1.5011677.
```

```
Kim, Hyungrok, & Saberi, Ingmar. Real homotopy theory and supersymmetric quantum mechanics. United States. doi:10.1063/1.5011677.
```

```
Kim, Hyungrok, and Saberi, Ingmar. Tue .
"Real homotopy theory and supersymmetric quantum mechanics". United States. doi:10.1063/1.5011677. https://www.osti.gov/servlets/purl/1540144.
```

```
@article{osti_1540144,
```

title = {Real homotopy theory and supersymmetric quantum mechanics},

author = {Kim, Hyungrok and Saberi, Ingmar},

abstractNote = {In the context of observing string backgrounds, much work has been devoted to the question of how similar a general quantum field theory (specifically, a two-dimensional superconformal field theory) is to a sigma model. Put differently, one would like to know how well or poorly one can understand the physics of string backgrounds in terms of concepts of classical geometry. Much attention has also been given of late to the question of how geometry can be encoded in a microscopic physical description that makes no explicit reference to space and time. We revisit the first question and review both well-known and less well-known results about geometry and sigma models from the perspective of dimensional reduction to supersymmetric quantum mechanics. The consequences of arising as the dimensional reduction of a d-dimensional theory for the resulting quantum mechanics are explored. In this context, we reinterpret the minimal models of rational (more precisely, complex) homotopy theory as certain supersymmetric Fock spaces, with unusual actions of the supercharges. The data of the Massey products appear naturally as supersymmetric vacuum states that are entangled between different degrees of freedom. This connection between entanglement and geometry is, as far as we know, not well known to physicists. In addition, we take note of an intriguing numerical coincidence in the context of string compactification on hyper-Kähler eight-manifolds.},

doi = {10.1063/1.5011677},

journal = {Journal of Mathematical Physics},

number = 7,

volume = 59,

place = {United States},

year = {2018},

month = {7}

}