On the thermodynamics of moving bodies TeX Export

@article{citeulike:4445922, abstract = {We model the situation in which a photon detector moves with constant velocity in a Minkowski heat-bath by considering an Unruh-DeWitt detector, with variable energy gap \$\hbar \omega\$, moving on a brane, at a non-zero (Unruh) temperature \$T\$ due to acceleration in an orthogonal direction. We compute the angular response for a 2-brane. At low velocity we find agreement with the standard Doppler shift formula in the limit \$\hbar\omega \gg T\$ in which the photon gas is classical; otherwise there is a discrepancy, which we attribute to angular-dependence of the induced emission rate. At relativistic velocities our result disagrees with the standard formula even when \$\hbar\omega \gg T\$, and above a critical velocity there is no response from the detector within a `backward' cone. We discuss potential implications for observations of the cosmic microwave background radiation.}, archivePrefix = {arXiv}, author = {Russo, Jorge G. and Townsend, Paul K.}, citeulike-article-id = {4445922}, citeulike-linkout-0 = {http://arxiv.org/abs/0904.4628}, citeulike-linkout-1 = {http://arxiv.org/pdf/0904.4628}, day = {12}, eprint = {0904.4628}, month = {Nov}, posted-at = {2009-05-29 15:01:30}, priority = {2}, title = {On the thermodynamics of moving bodies}, url = {http://arxiv.org/abs/0904.4628}, year = {2009} }

TY - JOUR ID - citeulike:4445922 L3 - citeulike-article-id:4445922 N2 - We model the situation in which a photon detector moves with constant velocity in a Minkowski heat-bath by considering an Unruh-DeWitt detector, with variable energy gap $\hbar \omega$, moving on a brane, at a non-zero (Unruh) temperature $T$ due to acceleration in an orthogonal direction. We compute the angular response for a 2-brane. At low velocity we find agreement with the standard Doppler shift formula in the limit $\hbar\omega \gg T$ in which the photon gas is classical; otherwise there is a discrepancy, which we attribute to angular-dependence of the induced emission rate. At relativistic velocities our result disagrees with the standard formula even when $\hbar\omega \gg T$, and above a critical velocity there is no response from the detector within a `backward' cone. We discuss potential implications for observations of the cosmic microwave background radiation. TI - On the thermodynamics of moving bodies AU - Russo, Jorge AU - Townsend, Paul PY - 2009/Nov/12/ UR - http://arxiv.org/abs/0904.4628 ER -