### Abstract

Recent conjectures that there are mesoscopically "large" extra dimensions, through which gravity propagates have interesting implications for much of physics. The scenario implies gross departures from Newton's law of gravity at small length scales. Testing departures from Coulomb's law on sub-millimetre scales is hard. It is now possible to routinely create Bose-Einstein condensates with de Brogue wavelengths of order a μm and total size of order 10 μm. BEC condensates move coherently under gravitational acceleration, and I propose that the transverse fringe shift due to the acceleration of a pair of interfering BECs passing a dense linear mass may be measurable, and provide direct evidence for anomalous gravitational acceleration. Ideally such experiments are best carried out in free fall to maximise the time spent by a BEC in the non-Newtonian regime.

Original language | English (US) |
---|---|

Pages (from-to) | 1541-1544 |

Number of pages | 4 |

Journal | International Journal of Modern Physics D |

Volume | 11 |

Issue number | 10 |

DOIs | |

State | Published - Dec 1 2002 |

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### All Science Journal Classification (ASJC) codes

- Mathematical Physics
- Astronomy and Astrophysics
- Space and Planetary Science

### Cite this

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*International Journal of Modern Physics D*, vol. 11, no. 10, pp. 1541-1544. https://doi.org/10.1142/S0218271802002864

**Testing gravity in large extra dimensions using Bose-Einstein condensates.** / Sigurdsson, Steinn.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Testing gravity in large extra dimensions using Bose-Einstein condensates

AU - Sigurdsson, Steinn

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Recent conjectures that there are mesoscopically "large" extra dimensions, through which gravity propagates have interesting implications for much of physics. The scenario implies gross departures from Newton's law of gravity at small length scales. Testing departures from Coulomb's law on sub-millimetre scales is hard. It is now possible to routinely create Bose-Einstein condensates with de Brogue wavelengths of order a μm and total size of order 10 μm. BEC condensates move coherently under gravitational acceleration, and I propose that the transverse fringe shift due to the acceleration of a pair of interfering BECs passing a dense linear mass may be measurable, and provide direct evidence for anomalous gravitational acceleration. Ideally such experiments are best carried out in free fall to maximise the time spent by a BEC in the non-Newtonian regime.

AB - Recent conjectures that there are mesoscopically "large" extra dimensions, through which gravity propagates have interesting implications for much of physics. The scenario implies gross departures from Newton's law of gravity at small length scales. Testing departures from Coulomb's law on sub-millimetre scales is hard. It is now possible to routinely create Bose-Einstein condensates with de Brogue wavelengths of order a μm and total size of order 10 μm. BEC condensates move coherently under gravitational acceleration, and I propose that the transverse fringe shift due to the acceleration of a pair of interfering BECs passing a dense linear mass may be measurable, and provide direct evidence for anomalous gravitational acceleration. Ideally such experiments are best carried out in free fall to maximise the time spent by a BEC in the non-Newtonian regime.

UR - http://www.scopus.com/inward/record.url?scp=0036994328&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036994328&partnerID=8YFLogxK

U2 - 10.1142/S0218271802002864

DO - 10.1142/S0218271802002864

M3 - Article

AN - SCOPUS:0036994328

VL - 11

SP - 1541

EP - 1544

JO - International Journal of Modern Physics D

JF - International Journal of Modern Physics D

SN - 0218-2718

IS - 10

ER -