Multiphoton blockade and antibunching in an optical cavity coupled with
dipole-dipole interacting $\Lambda$-type atoms
- URL: http://arxiv.org/abs/2304.02047v1
- Date: Tue, 4 Apr 2023 18:01:39 GMT
- Title: Multiphoton blockade and antibunching in an optical cavity coupled with
dipole-dipole interacting $\Lambda$-type atoms
- Authors: Zeshan Haider, Shahid Qamar, Muhammad Irfan
- Abstract summary: We study effects of DDI between the three-level atoms and show how the presence of DDI strongly influences the multiphoton blockade.
We show that this vanishing single-photon blockade is associated with a strong two-photon blockade, leading to two-photon bunching.
- Score: 3.5796128464650274
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study multiphoton blockade effects in a single-mode cavity interacting
with two three-level atoms in $\Lambda$-configuration having position-dependent
atom-field coupling. We consider the effects of dipole-dipole interaction (DDI)
between the three-level atoms and show how the presence of DDI strongly
influences the multiphoton blockade. For symmetric coupling of the atoms with
the field, the DDI induces an asymmetry in the emission spectra as a function
of pump field detuning. At positive detuning, the single-photon blockade gets
stronger as a function of DDI strength, leading to photon antibunching.
However, it becomes weaker at negative detuning and can also completely vanish.
We show that this vanishing single-photon blockade is associated with a strong
two-photon blockade, leading to two-photon bunching. Therefore, by just tuning
the frequency of the pump field, we can achieve two very distinct features. We
also study the effects of DDI when the atoms are asymmetrically coupled with
the field and show that the proposed system exhibits two-photon bunching. We
believe our results are important for the experimental realization of such
systems where DDI may be present.
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