52 citations · 110 across the 28 of their papers we have counts for
28 papers
Gravitationally Induced Entanglement of Matter in Quadratic Curvature Gravity and Constraints on Ghost Mass
Linda M. van Manen, Tim Blankenstein, Anupam Mazumdar
We investigate gravitationally generated entanglement in two quantum harmonic oscillators induced by quadratic (Stelle) gravity, including corrections up to post-Newtonian or…
Differential and Common Decoherence Modes in Witnessing the Quantum Gravity-Induced Entanglement of Matter
Ryan Rizaldy, Helen M Sheehy, Tian Zhou +1
In the context of the QGEM (Quantum Gravity-induced Entanglement of Masses) experiment, we consider two adjacent matter-wave interferometers in linear and parallel configurations t…
Entanglement dynamics through electromagnetic interactions in single-electron traps
Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín
We study the dynamics of quantum entanglement between two harmonically trapped electrons interacting via the electromagnetic force. Starting from two-mode Gaussian states at therma…
Graviton-mediated entanglement due to light bending from a quantum rotor
Dripto Biswas, Sougato Bose, Anupam Mazumdar +1
One of the key tests of the quantum nature of gravity is to test whether the virtual mediator of gravity between matter and photon gives rise to the quantum light-bending phenomeno…
Quantum gravitational contrast in creating Schrödinger cat state
Anupam Mazumdar, Tian Zhou
In this paper, we illustrate how a Schrödinger cat state created via a matter-wave interferometer can be viewed as the simplest quantum-gravity setup where we can treat both matter…
Witnessing entanglement between photon and matter due to graviton exchange
Arijit Dutta, Marko Toroš, Sougato Bose +1
The paper presents a scheme to detect entanglement arising from the quantum nature of gravity between a spin qubit and photons, using Stokes parameters. One of the crucial tests of…
Two-dimensional matter-wave interferometer, rotational dynamics, and spin contrast
Ryan Rizaldy, Shrestha Mishra, Anupam Mazumdar
We investigate a two-dimensional matter-wave interferometer where both spatial and rotational dynamics of a nanoparticle are intertwined in closing the one-loop interferometer in t…
Spatial superposition for a two-dimensional matter-wave interferometer in an inverted harmonic potential with gyroscopic rotational stability
Ryan Rizaldy, Tian Zhou, Run Zhou +1
This study presents a mathematical model of the spatial and rotational motion of a nanodiamond in an inverted harmonic potential to create a macroscopic quantum spatial superpositi…
Momentum Diffusion, Decoherence and Drag Force on a Magnetic Nanoparticle
Agya Sewara Alam, Anupam Mazumdar
In this paper, we will provide a complete derivation of the decoherence rate for a magnetic nanoparticle in quantum superposition in the presence of the fluctuating electromagnetic…
Random acceleration noise on Stern-Gerlach Interferometry in a Harmonic Trap
Sneha Narasimha Moorthy, Andrew Geraci, Sougato Bose +1
We analyze decoherence in a one-loop Stern--Gerlach--type matter-wave interferometer for a massive nanoparticle embedded with a nitrogen vacancy (NV)-centered nanodiamond evolving…
Magnetic levitation and spatial superposition of a nanodiamond with a current-carrying chip
Qian Xiang, Shafaq Gulzar Elahi, Andrew Geraci +2
We propose a current-carrying-chip scheme for generating spatial quantum superpositions using a levitating nanodiamond with a built-in nitrogen-vacancy (NV) centre defect. Our setu…
Magnetic noise in macroscopic quantum spatial superposition induced by inverted harmonic oscillator potential
Sneha Narasimha Moorthy, Anupam Mazumdar
We investigate a Stern-Gerlach type matter-wave interferometer where an inhomogeneous magnetic field couples to an embedded spin in a nanoparticle to create spatial superpositions.…
A Spin-Based Pathway to Testing the Quantum Nature of Gravity
Sougato Bose, Anupam Mazumdar, Roger Penrose +52
A key open problem in physics is the correct way to combine gravity (described by general relativity) with everything else (described by quantum mechanics). This problem suggests t…
Destructive Interference of Inertial Noise in Matter-wave Interferometry
Meng-Zhi Wu, Marko Toroš, Sougato Bose +1
Matter-wave interferometry is highly susceptible to inertial acceleration noises arising from the vibration of the experimental apparatus. There are various methods for noise suppr…
Evolution of tripartite entanglement in three-qubit Quantum Gravity-Induced Entanglement of Masses (QGEM) with quantum decoherence
Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín
The recently introduced quantum gravity-induced entanglement of masses (QGEM) protocol aims to test the quantum nature of gravity by witnessing the entanglement produced by the vir…
Entanglement witnesses mediated via axionLike particles
Pablo Guillermo Carmona Rufo, Ayush Kumar, Carlos Sabín +1
Entanglement is solely a quantum property and it can be extremely helpful to test the physics beyond the Standard Model in tabletop experiments with the advent of future quantum te…
Spin contrast, finite temperature, and noise in matter-wave interferometer
Tian Zhou, Ryan Rizaldy, Martine Schut +1
In this paper, we will show how finite-temperature corrections and spin-dependent/independent noise will affect the contrast in a matter-wave interferometer, especially with massiv…
Parameter scanning in a quantum-gravity-induced entanglement of masses (QGEM) experiment with electromagnetic screening
Martine Schut, Anupam Mazumdar
Witnessing the quantum nature of spacetime is an exceptionally challenging task. However, the quantum gravity-induced entanglement of matter (QGEM) protocol proposes such a test by…
Magnetic field fluctuations induced decoherence of a diamagnetic nanosphere
Ruiyun Zhang, Martine Schut, Anupam Mazumdar
This paper provides a simple derivation of the decoherence rate for a diamagnetic nanoparticle in the presence of fluctuations of the magnetic field in a thermal environment. Diama…
Rotational stability in nanorotor and spin contrast in one-loop interferometry in the Stern-Gerlach setup
Ryan Rizaldy, Tian Zhou, Sougato Bose +1
The rotation of a nanoparticle in a quantum system has many applications, from theory to experiments. This paper will treat nanoparticle rotational dynamics for spin-embedded nanor…
Genuine tripartite entanglement in graviton-matter interactions
Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín
We demonstrate the existence of genuine tripartite non-Gaussian entanglement in a quantum gravitational system formed by a quantum harmonic oscillator coupled to a single frequency…
Diamagnetic microchip traps for levitated nanoparticle entanglement experiments
Shafaq Gulzar Elahi, Martine Schut, Andrew Dana +4
The Quantum Gravity Mediated Entanglement (QGEM) protocol offers a novel method to probe the quantumness of gravitational interactions at non-relativistic scales. This protocol lev…
Decoherence rate expression due to air molecule scattering in spatial qubits
Martine Schut, Patrick Andriolo, Marko Toroš +2
We provide a solution for decoherence in spatial superpositions due to scattering/collision with air molecules. This result reproduces the short- and long-wavelength limits known i…
Gyroscopic stability for nanoparticles in Stern-Gerlach Interferometry and spin contrast
Tian Zhou, Sougato Bose, Anupam Mazumdar
Creating macroscopic spatial quantum superposition with a nanoparticle has a multitude of applications, ranging from testing the foundations of quantum mechanics, matter-wave inter…