In the planar limit of the Myers-Perry black hole, increasing the boost parameter makes the imaginary quarkonium potential appear at smaller separations and enlarges the thermal width, most strongly for transverse pair orientation.
Thermal width of heavy quarkonia from an AdS/QCD model
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abstract
We estimate the thermal width of a heavy quark anti-quark pair inside a strongly coupled plasma using a holographic AdS/QCD model. The imaginary part of the quark potential that produces the thermal width appears in the gravity dual from quantum fluctuations of the string world sheet in the vicinity of the horizon. The results, obtained using a soft wall background that involves an infrared mass scale, are consistent with previous analisys where the mass scale was introduced by averaging over quark anti-quark states.
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Imaginary potential and thermal width in the spinning black hole background from holography
In the planar limit of the Myers-Perry black hole, increasing the boost parameter makes the imaginary quarkonium potential appear at smaller separations and enlarges the thermal width, most strongly for transverse pair orientation.