TY - JOUR
T1 - Nonclassical radiation from thermal cavities in the ultrastrong coupling regime
AU - Ridolfo, A.
AU - Savasta, S.
AU - Hartmann, Michael J.
PY - 2013/4/15
Y1 - 2013/4/15
N2 - Thermal or chaotic light sources emit radiation characterized by a slightly enhanced probability of emitting photons in bunches, described by a zero-delay second-order correlation function g(2)(0)=2. Here we explore photon-coincidence counting statistics of thermal cavities in the ultrastrong coupling regime, where the atom-cavity coupling rate becomes comparable to the cavity resonance frequency. We find that, depending on the system temperature and coupling rate, thermal photons escaping the cavity can display very different statistical behaviors, characterized by second-order correlation functions approaching zero or greatly exceeding two.
AB - Thermal or chaotic light sources emit radiation characterized by a slightly enhanced probability of emitting photons in bunches, described by a zero-delay second-order correlation function g(2)(0)=2. Here we explore photon-coincidence counting statistics of thermal cavities in the ultrastrong coupling regime, where the atom-cavity coupling rate becomes comparable to the cavity resonance frequency. We find that, depending on the system temperature and coupling rate, thermal photons escaping the cavity can display very different statistical behaviors, characterized by second-order correlation functions approaching zero or greatly exceeding two.
UR - http://www.scopus.com/inward/record.url?scp=84876265483&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.163601
DO - 10.1103/PhysRevLett.110.163601
M3 - Article
C2 - 23679600
AN - SCOPUS:84876265483
SN - 0031-9007
VL - 110
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
M1 - 163601
ER -