16 citations · 40 across the 17 of their papers we have counts for
19 papers
Phonon-limited detection thresholds for genetically encoded fluorescent-protein spin-qubit relaxometry of neural radicals
Parul Raghuvanshi, Sagnik Ganguly, Sharika E +2
The demonstration that enhanced yellow fluorescent protein hosts an optically addressable spin-1 qubit in its metastable triplet state raises the prospect of genetically encoded qu…
Dzyaloshinskii-Moriya interaction as a coherence diagnostic for chirality-induced spin selectivity
Vishvendra S. Poonia
Whether chirality-induced spin selectivity (CISS) reflects coherent SU(2) spin rotation or incoherent spin-dependent filtering is a central unresolved question in molecular spintro…
Quantum-Accelerated Gowers Norm for Bent Boolean Functions
Rajdeep Dwivedi, C. A. Jothiwashran, Sugata Gangopadhyay +1
Bent Boolean functions extremal objects that maximally resist affine approximation are notoriously hard to construct for large numbers of variables. We propose a hybrid quantum-cla…
Exchange-Only Silicon Based Spin Qubits: Charge Noise, PINN Optimised Pulse Sequences,and Gate-Level Fidelity
Rajdeep Rameshchandra Dwivedi, Amitoj Singh Miglani, Vishvendra Singh Poonia
Exchange-only (EO) spin qubits in silicon realise all-electrical qubit control through pairwise Heisenberg exchange interactions, making them attractive for scalable quantum comput…
Chiral-Induced Spin Selectivity Regulates Triplet formation in Heliobacterial Photosynthesis
Parul Raghuvanshi, Vishvendra Singh Poonia
Triplet formation and its regulation have always been of central interest in understanding the photophysical behavior of living systems. In organic systems, excessive triplet forma…
Radical Pair Mechanism and the Role of Chirality-Induced Spin Selectivity during Planaria Regeneration: Effect of Weak Magnetic Field on ROS levels
Yash Tiwari, Parul Raghuvanshi, Vishvendra Singh Poonia
Planarian is an intriguing model system wherein the effect of electric and magnetic fields can be studied on various biochemical pathways during cell morphogenesis. Recent experime…
Effect of Electron-Phonon Interactions on Three-Level QD-based Spaser: Linear and Quadratic Potentials
Ankit Purohit, Vishvendra Singh Poonia, Akhilesh Kumar Mishra
In this article, a spaser (surface plasmon amplification by stimulated emission of radiation) system consisting of a metal nanoparticle surrounded by a large number of quantum dots…
Chiral-induced spin selectivity augments quantum coherence in avian compass
Yash Tiwari, Vishvendra Singh Poonia
This work investigates the effect of chiral-induced spin selectivity (CISS) on quantum spin coherence in the radical pair mechanism of avian magnetoreception. Additionally, we exam…
A quantum algorithm to estimate the closeness to the Strict Avalanche criterion in Boolean functions
C. A. Jothishwaran, Abhishek Chakraborty, Vishvendra Singh Poonia +2
We propose a quantum algorithm (in the form of a quantum oracle) that estimates the closeness of a given Boolean function to one that satisfies the ``strict avalanche criterion'' (…
Role of CISS in the Radical Pair Model of Avian Magnetoreception
Yash Tiwari, Vishvendra Singh Poonia
In this paper, we investigate the effect of chiral-induced spin selectivity (CISS) on the radical pair model of avian magnetoreception. We examine the impact of spin selectivity on…
Impact of AC Magnetic Field on Decoherence of Quantum Dot based Single Spin Qubit System
Tanmay Sarkar, Yash Tiwari, Vishvendra Singh Poonia
Quantum dot-based spin qubits are resilient towards charge noise and are affected by magnetic noise only. However, environmental interaction leads to decoherence in these qubit sys…
Quantum dot-based high-fidelity universal quantum gates in noisy environment
Yash Tiwari, Aditya Dev, Vishvendra Singh Poonia
Quantum dot-based spin qubit realization is one of the most promising quantum computing systems owing to its integrability with classical computation hardware and its versatility i…
Quantum-enhanced photocell based on GaN quantum dots
Aditya Dev, Sumit Chaudhary, Jay Reshamiya +2
In this work, we propose an efficient quantum-enhanced solid-state photocell based on GaN quantum dots. We exploit the strong built-in electric field in GaN QDs and excitonic dipol…
Generalized Boolean Functions and Quantum Circuits on IBM-Q
Sugata Gangopadhyay, Vishvendra Singh Poonia, Daattavya Aggarwal +1
We explicitly derive a connection between quantum circuits utilising IBM's quantum gate set and multivariate quadratic polynomials over integers modulo 8. We demonstrate that the a…
Solid state emulation of the photosynthetic reaction center
Vishvendra Singh Poonia
The photosynthetic reaction center of plants and bacteria is an extremely efficient energy to charge conversion device. Solar photons create excitons in the pigment molecules. Thes…
The Avian Compass can be Sensitive even without Sustained Quantum Coherence
Rakshit Jain, Vishvendra Singh Poonia, Kasturi Saha +2
Theoretical studies indicating the presence of long-lived coherence in the radical pair system have engendered questions about the utilitarian role of sustained coherence in the av…
Quantum Biomimetic Modeling of Diamond NV Center Spin Dynamics
Vishvendra Singh Poonia, Dipankar Saha, Swaroop Ganguly
The spin dynamics of the diamond NV center turns out to be similar to that of the chemical compass responsible for avian magnetoreception. We present a simulation framework b…
On the functional window of the avian compass
Vishvendra Singh Poonia, Kiran Kondabagil, Dipankar Saha +1
The functional window is an experimentally observed property of the avian compass that refers to its selectivity around the geomagnetic field strength. We show that the radical-pai…
State Transitions and Decoherence in the Avian Compass
Vishvendra Singh Poonia, Dipankar Saha, Swaroop Ganguly
The radical pair model has been successful in explaining behavioral characteristics of the geomagnetic compass believed to underlie the navigation capability of certain avian speci…