Vibhor Singh

A Cosmological BCFW Bridge and Its Canonical Geometry

A. J. Bala, Sachin Jain, Vibhor Singh

We build a BCFW-like recursion for cosmological correlators using the orthogonal Grassmannian. The key step is a bridge deformation that leaves all the Grassmannian constraints intact. The recursion relations are purely algebraic and avoid any spectral or radial integrals that usually appear …

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Superconducting cavity probes sliding ferroelectricity in small-angle twisted WSe$_2$

Krishnendu Maji, Supriya Mandal, Sriram H., Rishiraj Rajkhowa et autres

Ferroelectricity is a property of materials that exhibit spontaneous charge polarization. Ferroelectricity in 2D materials is interesting because of their applications in memory devices and field-effect transistors. Recently, a new type of ferroelectricity, known as sliding ferroelectricity, has been discovered, in which …

Quantized NN Workflow for Low-Latency Multi-Qubit State Discrimination on FPGA

Pradeep Kumar Gautam, Shantharam Kalipatnapu, Shankaranarayanan H, Ujjawal Singhal et autres

Measuring a qubit state is a fundamental but error-prone task in quantum computing. As the number of qubits increases, scalable readout demands multiplexed qubit measurement, which often suffers from crosstalk and other nonidealities. The conventional approach of qubit state detection often struggles …

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A supertwistor formalism for $$ \mathcal{N}=1,2,3,4 $$ SCFT3

A. J. Bala, Sachin Jain, Dhruva K. S, Deep Mazumdar et autres

A bstract We develop a manifest supertwistor space formalism for three dimensional $$ \mathcal{N}=1,2,3,4 $$ N = 1 , 2 , 3 , 4 superconformal field theories. This formalism simultaneously makes manifest the supersymmetry, conformal invariance and conservation. We solve two and …

Fluxonium qubit-based hybrid electromechanical system

Roson Nongthombam, Anshika Ranjan, Amarendra K. Sarma, Vibhor Singh

Superconducting fluxonium qubits show a highly tunable energy-level structure, with transition frequencies spanning from a few MHz to few GHz. This range is well-aligned to the operational frequencies of highly coherent micro- and nano-mechanical resonators, making fluxonium an attractive candidate for hybrid …

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Superconducting Cavity Probes Sliding Ferroelectricity in Small-Angle Twisted WSe 2

Krishnendu Maji, Supriya Mandal, Sriram H., Rishiraj Rajkhowa et autres

Ferroelectricity is a property of materials that exhibits spontaneous charge polarization. Ferroelectricity in 2D materials is interesting because of its applications in memory devices and field-effect transistors. Recently, a new type of ferroelectricity, known as sliding ferroelectricity, has been discovered, in which …

in, fr, jp (code pays fourni par la source)

Publisher Correction: Absence of heat flow in ν = 0 quantum Hall ferromagnet in bilayer graphene

Ravi Kumar, Saurabh Kumar Srivastav, Ujjal Roy, Ujjawal Singhal et autres

This article was originally published under standard Springer Nature license (© The Author(s), under exclusive licence to Springer Nature Limited). It is now available as an open-access paper under a Creative Commons Attribution 4.0 International license, © The Author(s). The error has …

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MIRE: Mixed Reality based Interactive platform for Robotics Education

Shreyansh Sharma, Vishakha Pareek, Vibhor Singh, Santanu Chaudhury

Conventional robotics curricula often face significant hurdles such as high procurement costs of hardware, complex maintenance, and the need for specialized facilities, which limit widespread adoption of robotics education. This paper introduces MIRE, a Mixed Reality (MR) platform for robotics education that …

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Bridging Reality and Virtuality: Interactive and Optimized Art Display using Mixed Reality Technology

Vishakha Pareek, Shreyansh Sharma, Kalpesh Sompura, Vibhor Singh et autres

The work presents a novel way to exhibit art by integrating mixed reality (MR) technology for displaying art. Conventional display spaces are often limited in terms of space and access. We created and developed a digital art display system that utilizes MR …

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Robust gates inspired by stimulated Raman adiabatic passage for a superconducting dual-rail qubit

Ujjawal Singhal, Harsh Vardhan Upadhyay, Irshad Ahmad, Vibhor Singh

Stimulated Raman adiabatic passage (STIRAP) is a powerful technique for robust state transfer capabilities in quantum systems. This method, however encounters challenges for its implementation as a gate in qubit-subspace due to its sensitivity to initial states. By incorporating single-photon detuning into …

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Absence of heat flow in ν = 0 quantum Hall ferromagnet in bilayer graphene

Ravi Kumar, Saurabh Kumar Srivastav, Ujjal Roy, Ujjawal Singhal et autres

Abstract The charge neutrality point of bilayer graphene, denoted as the ν = 0 state, manifests competing phases marked by spontaneous ordering of the spin, valley and layer degrees of freedom under external magnetic and electric fields. However, due to their electrically …

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STIRAP-Inspired Robust Gates for a Superconducting Dual-Rail Qubit

Ujjawal Singhal, Harsh Vardhan Upadhyay, I. Ahmad, Vibhor Singh

STImulated Raman Adiabatic Passage (STIRAP) is a powerful technique for robust state transfer capabilities in quantum systems. This method, however encounters challenges for its implementation as a gate in qubit-subspace due to its sensitivity to initial states. By incorporating single-photon detuning into …