171 citations · 695 across the 25 of their papers we have counts for
25 papers
Robust Quantum Learning through Hamiltonian Reservoir Computing
Youya Xu, Chengyong Yu, Sanjib Ghosh
Quantum learning provides a versatile paradigm for information processing by exploiting the intrinsic representational capacity of high-dimensional Hilbert spaces. Here, we investi…
Time Crystals in Coupled Exciton-Polariton Condensates
Xuan Ye, Hong-Jin Xiong, Alexey Kavokin +1
In this paper, we show that time crystals can emerge in coupled exciton-polariton condensates without periodic external driving, enabled instead by incoherent gain and dissipation…
Dynamical Superfluid and Bose-Insulator Phases in Quantized Polariton Lattices
Sanjib Ghosh
We demonstrate that Hilbert-space quantization in polariton lattices-manifested as multiple quantized energy levels in strongly confined sites-provides an unconventional route to r…
Estimating many properties of a quantum state via quantum reservoir processing
Yinfei Li, Sanjib Ghosh, Jiangwei Shang +2
Estimating properties of a quantum state is an indispensable task in various applications of quantum information processing. To predict properties in the post-processing stage, it…
Topological Single Photon Emission from Quantum Emitter Chains
Yubin Wang, Huawen Xu, Xinyi Deng +3
We develop a scheme of generating highly indistinguishable single photons from an active quantum Su-Schrieffer-Heeger chain made from a collection of noisy quantum emitters. Surpri…
Quantum-Classical Hybrid Information Processing via a Single Quantum System
Quoc Hoan Tran, Sanjib Ghosh, Kohei Nakajima
Current technologies in quantum-based communications bring a new integration of quantum data with classical data for hybrid processing. However, the frameworks of these technologie…
Beating the classical phase precision limit using a quantum neuromorphic platform
Tanjung Krisnanda, Sanjib Ghosh, Tomasz Paterek +2
Phase measurement constitutes a key task in many fields of science, both in the classical and quantum regime. The higher precision of such measurement offers significant advances,…
Superpolynomial Quantum Enhancement in Polaritonic Neuromorphic Computing
Huawen Xu, Tanjung Krisnanda, Wouter Verstraelen +2
Recent proof-of-principle experiments have demonstrated the implementation of neuromorphic computing using exciton-polaritons, making use of coherent classical states [D. Ballarini…
Interaction induced bi-skin effect in an exciton-polariton system
Xingran Xu, Huawen Xu, S. Mandal +3
The non-Hermitian skin effect can be realized through asymmetric hopping between forward and backward directions, where all the modes of the system are localized at one edge of a f…
Topological phase transition in an all-optical exciton-polariton lattice
M. Pieczarka, E. Estrecho, S. Ghosh +8
Topological insulators are a class of electronic materials exhibiting robust edge states immune to perturbations and disorder. This concept has been successfully adapted in photoni…
Creating and concentrating quantum resource states in noisy environments using a quantum neural network
Tanjung Krisnanda, Sanjib Ghosh, Tomasz Paterek +1
Quantum information processing tasks require exotic quantum states as a prerequisite. They are usually prepared with many different methods tailored to the specific resource state.…
Optical Control of Topological Polariton Phase in a Perovskite Lattice
Rui Su, Sanjib Ghosh, Timothy C. H. Liew +1
Strong light-matter interaction enriches topological photonics by dressing light with matter, which provides the possibility to realize tuneable topological devices with immunity t…
Reconstructing quantum states with quantum reservoir networks
Sanjib Ghosh, Andrzej Opala, Michał Matuszewski +2
Reconstructing quantum states is an important task for various emerging quantum technologies. The process of reconstructing the density matrix of a quantum state is known as quantu…
Realising and compressing quantum circuits with quantum reservoir computing
Sanjib Ghosh, Tanjung Krisnanda, Tomasz Paterek +1
Quantum computers require precise control over parameters and careful engineering of the underlying physical system. In contrast, neural networks have evolved to tolerate imprecisi…
Dynamical blockade in a single mode bosonic system
Sanjib Ghosh, Timothy C. H. Liew
We introduce a dynamical blockade phenomenon occurring in a nonlinear bosonic mode induced by a combination of continuous and pulsed excitations. We find that the underlying mechan…
Polaritonic neuromorphic computing outperforms linear classifiers
D. Ballarini, A. Gianfrate, R. Panico +10
Machine learning software applications are nowadays ubiquitous in many fields of science and society for their outstanding capability of solving computationally vast problems like…
Observation of Exciton Polariton Condensation in a Perovskite Lattice at Room Temperature
Rui Su, Sanjib Ghosh, Sheng Liu +3
Bose-Einstein condensation in strongly correlated lattices provides the possibility to coherently generate macroscopic quantum states, which have attracted tremendous attention as…
Quantum reservoir processing
Sanjib Ghosh, Andrzej Opala, Michał Matuszewski +2
The concurrent rise of artificial intelligence and quantum information poses opportunity for creating interdisciplinary technologies like quantum neural networks. Quantum reservoir…
Single photons from a gain medium below threshold
Sanjib Ghosh, Timothy C. H. Liew
The emission from a nonlinear photonic mode coupled weakly to a gain medium operating below threshold is predicted to exhibit antibunching. In the steady state regime, analytical s…
Coherent forward scattering as a signature of Anderson metal-insulator transitions
Sanjib Ghosh, Christian Miniatura, Nicolas Cherroret +1
We show that the coherent forward scattering (CFS) interference peak amplitude sharply jumps from zero to a finite value upon crossing a metal-insulator transition. Extensive numer…
Coherent backscattering reveals the Anderson transition
Sanjib Ghosh, Dominique Delande, Christian Miniatura +1
We develop an accurate finite-time scaling analysis of the angular width of the coherent backscattering (CBS) peak for waves propagating in 3D random media. Applying this method to…
Coherent forward scattering in 2D disordered systems
S. Ghosh, N. Cherroret, B. Grémaud +2
We present a detailed numerical and theoretical analysis of the recently discovered phenomenon of coherent forward scattering. This effect manifests itself as a macroscopic interfe…
Voltage Controlled Switching Phenomenon in Disordered Superconductors
Sanjib Ghosh, D. De Munshi
Superconductor-to-Insulator transition (SIT) is a phenomenon occurring for highly disordered superconductors and is suitable for a superconducting switch development. SIT has been…
Amplitude Fluctuations Driven by the Density of Electron Pairs within Nanosize Granular Structuters inside Strongly Disordered Superconductors: Evidence for a Shell-Like Effect
Sanjib Ghosh, Sudhansu S. Mandal
Motivated by the recent observation of the shell effect in a nanoscale pure superconductor by Bose {\em et al} [Nat. Mat. {\bf 9}, 550 (2010)], we explore the possible shell-like e…