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<strong>Entanglement for Qubit and Qudit in Single Photoionization of Rotationally State Selected, Oriented C3v Polyatomic Molecules</strong>

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Title Statement <strong>Entanglement for Qubit and Qudit in Single Photoionization of Rotationally State Selected, Oriented C3v Polyatomic Molecules</strong>
 
Added Entry - Uncontrolled Name Chakraborty Sen, Minakshi ; Asansol Girls' College
Sen, Sandip ; Triveni Devi Bhalotia College
 
Uncontrolled Index Term Atomic and molecular physics;quantum entanglement
Quantum entanglement; Qudit; Qubit; photoionization; Concurrence; Density matrix; Circular dichroism
 
Summary, etc. Multidimensional quantum systems (qudits), as a generalization of two-level quantum systems (qubits), can exhibit distinct quantum properties, provide higher capacity and noise robustness in quantum communications. Qudits also offer higher efficiency and flexibility in quantum computing. Present paper studies the bipartite entanglement betwixt a molecular photoion (qudit) and photoelectron (qubit) produced in the photoionization from rotationally state selected, oriented polyatomic molecule without observing spin-orbit interaction (SOI). In absence of SOI, Russell-Saunders (RS) coupling is applicable. The dimension of ionic qudit depends on its electronic state. The degree of entanglement is quantified by the concurrence obtained from the elements of density matrix (EDM) for photoionization. The theoretical formulation for entanglement has been developed for photoionization of rotationally state selected, oriented C3v molecules. It is applied, as an example, to photoionization in 2 13a1 orbital of a state selected oriented CH3I in a pure JKJMJ rotational state. We find that the entanglement depends significantly on the rotational states of the molecule as well as either or both on the directions of molecular orientation, of spin quantization, and of the incident beam along with its polarization. A significant effect on entanglement properties due to the circular dichroism (CD) has also been observed.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2022-08-02 11:47:58
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/60217
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 60, ##issue.no## 6 (2022): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597069
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597070
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597071
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597072
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597073
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597353
http://op.niscair.res.in/index.php/IJPAP/article/download/60217/465597354
 
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