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**Physics Note****Published**

# **The Rotating Detector and Vacuum Fluctuations**

**V. A. Lorenci; R.D.M. De Paola; N.F. Svaiter**

2000

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## **Publication details**

<dl>

<dt>Authors</dt>
<dd>V. A. Lorenci; R.D.M. De Paola; N.F. Svaiter</dd>

<dt>Type</dt>
<dd>Physics Note</dd>

<dt>Status</dt>
<dd>Published</dd>

<dt>Publication date</dt>
<dd>2000</dd>

<dt>Description</dt>
<dd>In this work we compare the quantization of a massless scalar field in an inertial frame with the quantization in a rotating frame. We used the Trocheries-Takeno mapping to relate measurements in the inertial and the rotating frames. An exact solution of the Klein-Gordon equation in the rotating coordinate system is found and the Bogolubov transformation between the inertial and rotating modes is calculated, showing that the rotating observer defines a vacuum state different from the Minkowski one. We also obtain the response function of an Unruh-De Witt detector coupled with the scalar field travelling in a uniformly rotating world-line. The response function is obtained for two different situations: when the quantum field is prepared in the usual Minkowski vacuum state and when it is prepared in the Trocheries-Takeno vacuum state. We also consider the case of an inertial detector interacting with the field in the rotating vacuum.</dd>

<dt>Year</dt>
<dd>2000</dd>

<dt>Number</dt>
<dd>CBPF-NF-033/00</dd>

<dt>Linked to a thesis</dt>
<dd>No</dd>

<dt>Linked to a grant</dt>
<dd>No</dd>

</dl>

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