Three-level atom–field in the context of time-dependent coupling and power-lower potentials

Algarni, Mariam; Berrada, K.; Abdel‐Khalek, S.; Eleuch, Hichem

doi:10.1016/j.rinp.2022.106089

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2023

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“…The interaction between a three-level Λ-type atom and one-mode EM cavity field in the presence of the classical homogenous gravitational field has been studied in [20]. When a time-varying coupling and power-law potentials are allowed in the model, it is shown that a large nonlocal correlation can be achieved through the control of physical parameters [21].…”

Section: Introductionmentioning

confidence: 99%

Storing quantum information in a generalised Dicke model via a simple rotation

López-Peña,

Cordero,

Nahmad-Achar

et al. 2023

J. Phys. A: Math. Theor.

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A method for storing quantum information is presented for 3-level atomic systems interacting dipolarly with a single radiation ﬁeld. The method involves performing simple local SU(2) rotations on the Hamiltonian. Under equal detuning, these transformations decouple one of the atomic levels from the electromagnetic ﬁeld for the Λ- and V -conﬁgurations, yielding two eﬀective 2-level systems (qubits) plus an isolated atomic level; this allows for the exchange of information between the qubits. This rotation preserves the quantum phase diagram of the system. The method could possibly be used as a means to manipulate quantum information, such as storage and retrieval, or communication via a transmission line.

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Section: Introductionmentioning

confidence: 99%