Superradiance in black hole spacetimes can trigger instabilities. Here we show that, due to superradiance, small Kerr-anti-de Sitter black holes are unstable. Our demonstration uses a matching procedure, in a long wavelength approximation.
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South China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R China
Zhang, Songming
Liu, Yunlong
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South China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R China
Liu, Yunlong
Zhang, Xiangdong
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South China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Dept Phys, Guangzhou 510641, Guangdong, Peoples R China
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Univ Sao Paulo, Inst Fis, Caixa Postal 66318, BR-05315970 Sao Paulo, SP, BrazilUniv Sao Paulo, Inst Fis, Caixa Postal 66318, BR-05315970 Sao Paulo, SP, Brazil
Campos, T. L.
Baldiotti, M. C.
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Univ Estadual Londrina, Dept Fis, BR-86051990 Londrina, PR, BrazilUniv Sao Paulo, Inst Fis, Caixa Postal 66318, BR-05315970 Sao Paulo, SP, Brazil
Baldiotti, M. C.
Molina, C.
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Univ Sao Paulo, Escola Artes Ciencias & Human, Ave Arlindo Bettio 1000, BR-03828000 Sao Paulo, SP, BrazilUniv Sao Paulo, Inst Fis, Caixa Postal 66318, BR-05315970 Sao Paulo, SP, Brazil