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SUMMARY:Quantum Entanglement and Quantum Simulation Involving Atomic Nucle
 i
DTSTART:20260618T120000Z
DTEND:20260618T130000Z
DTSTAMP:20260605T042300Z
UID:indico-event-13602@indico.ijclab.in2p3.fr
CONTACT:hebborn@ijclab.in2p3.fr
DESCRIPTION:Speakers: Ashutosh Singh (IJClab)\n\nUnderstanding strongly in
 teracting quantum many-body systems remains a central challenge in nuclear
  physics\, largely due to the exponential growth of the Hilbert space. Qua
 ntum computing offers a promising framework to overcome these classical co
 mputational limits. In this seminar\, I will present my recent research ac
 tivities at the intersection of nuclear physics and quantum information sc
 ience\, focusing on the development of quantum algorithms to simulate open
  nuclear systems and analyze nuclear correlations.\nI will begin by discus
 sing a hybrid quantum-classical algorithm designed to simulate nuclear res
 onance states. By applying the Complex Scaling Method (CSM) to the nuclear
  Hamiltonian\, we transform the resonance problem into a non-Hermitian eig
 envalue problem\, which is then solved using a variational quantum algorit
 hm. I will demonstrate how this method\, leveraging Gray code encoding to 
 minimize required qubit resources\, has been successfully applied to D- an
 d G-wave resonances in an $\\alpha - \\alpha$ scattering potential.\nNext\
 , I will introduce a quantum-native approach for computing Clebsch-Gordan 
 (CG) coefficients. By reformulating the recursive calculation as a homogen
 eous linear system\, we utilize the Variational Quantum Linear Solver (VQL
 S) to efficiently encode these essential angular momentum coefficients int
 o the amplitudes of a quantum state. Following this\, I will present an ap
 plication of quantum information theory to nuclear structure\, specificall
 y focusing on the quantification of proton-neutron spin entanglement withi
 n the deuteron ground state.\nTo conclude\, I will briefly outline my ongo
 ing postdoctoral work here at IJCLab\, discussing the theoretical and comp
 utational challenges of scaling these approaches to tackle heavier\, many-
 body nuclear systems.\n\nhttps://indico.ijclab.in2p3.fr/event/13602/
LOCATION:100/2-A201 - Salle A201 (IJCLab)
URL:https://indico.ijclab.in2p3.fr/event/13602/
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