786 citations · 1.4k across the 24 of their papers we have counts for
16 papers · 1 filter
Magnon squeezing in the quantum regime
Yuan-Chao Weng, Da Xu, Zhen Chen +8
Squeezed states, crucial for quantum metrology and emerging quantum technologies, have been demonstrated in various platforms, but quantum squeezing of magnons in macroscopic spin…
Optimal control of linear Gaussian quantum systems via quantum learning control
Yu-Hong Liu, Yexiong Zeng, Qing-Shou Tan +3
Efficiently controlling linear Gaussian quantum (LGQ) systems is a significant task in both the study of fundamental quantum theory and the development of modern quantum technology…
Landau-Zener without a Qubit: Unveiling Multiphoton Interference, Synthetic Floquet Dimensions, and Dissipative Quantum Chaos
Leo Peyruchat, Fabrizio Minganti, Marco Scigliuzzo +5
Landau-Zener-Stückelberg-Majorana (LZSM) interference occurs when qubit parameters are periodically modulated across avoided level crossings. We explore this phenomenon in nonlinea…
Error-Tolerant Amplification and Simulation of the Ultrastrong-Coupling Quantum Rabi Model
Ye-Hong Chen, Zhi-Cheng Shi, Franco Nori +1
Cat-state qubits formed by photonic cat states have a biased noise channel, i.e., one type of error dominates over all the others. We demonstrate that such biased-noise qubits are…
Reconciling quantum and classical spectral theories of ultrastrong coupling: Role of cavity bath coupling and gauge corrections
Stephen Hughes, Chris Gustin, Franco Nori
Focusing on the widely adopted Hopfield model with cavity dissipation, we show how the linear spectrum of an ultrastrongly coupled cavity and a dipole can be described either class…
Supervised learning for robust quantum control in composite-pulse systems
Zhi-Cheng Shi, Jun-Tong Ding, Ye-Hong Chen +4
In this work, we develop a supervised learning model for implementing robust quantum control in composite-pulse systems, where the training parameters can be either phases, detunin…
Tuning the initial phase to control the final state of a driven qubit
Polina Kofman, Sergey Shevchenko, Franco Nori
A driven quantum system can experience Landau-Zener-Stuckelberg-Majorana (LZSM) transitions between its states, when the respective energy levels quasi-cross. If this quasicrossing…
Relational superposition measurements with a material quantum ruler
Hui Wang, Flaminia Giacomini, Franco Nori +1
In physics, it is crucial to identify operational measurement procedures to give physical meaning to abstract quantities. There has been significant effort to define time operation…
Heralded nonlocal quantum gates for distributed quantum computation in a decoherence-free subspace
Wanhua Su, Wei Qin, Adam Miranowicz +2
We propose a heralded protocol for implementing nontrivial quantum gates on two stationary qubits coupled to spatially separated cavities. By dynamically controlling the evolution…
Noisy intermediate-scale quantum computers
Bin Cheng, Xiu-Hao Deng, Xiu Gu +18
Quantum computers have made extraordinary progress over the past decade, and significant milestones have been achieved along the path of pursuing universal fault-tolerant quantum c…
Exponential sensitivity revival of noisy non-Hermitian quantum sensing with two-photon drives
Liying Bao, Bo Qi, Franco Nori +1
Unique properties of multimode non-Hermitian lattice dynamics can be utilized to construct exponentially sensitive sensors. However, the impact of noise remains unclear, which may…
Probing the symmetry breaking of a light--matter system by an ancillary qubit
Shuai-Peng Wang, Alessandro Ridolfo, Tiefu Li +4
Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena and promise new applications in quantum technolo…
Fully solvable finite simplex lattices with open boundaries in arbitrary dimensions
Ievgen I. Arkhipov, Adam Miranowicz, Franco Nori +2
Finite simplex lattice models are used in different branches of science, e.g., in condensed matter physics, when studying frustrated magnetic systems and non-Hermitian localization…
Deterministic loading and phase shaping of microwaves onto a single artificial atom
W. -J. Lin, Y. Lu, P. Y. Wen +12
Loading quantum information deterministically onto a quantum node is an important step towards a quantum network. Here, we demonstrate that coherent-state microwave photons, with a…
Exceptional Photon Blockade: Engineering Photon Blockade with Chiral Exceptional Points
R. Huang, Ş. K. Özdemir, J. -Q. Liao +4
Non-Hermitian spectral degeneracies, known as exceptional points (EPs), feature simultaneous coalescence of both eigenvalues and the associated eigenstates of a system. A host of i…
Selective darkening of degenerate transitions for implementing quantum controlled-NOT gates
P. C. de Groot, S. Ashhab, A. Lupascu +4
We present a theoretical analysis of the selective darkening method for implementing quantum controlled-NOT (CNOT) gates. This method, which we recently proposed and demonstrated,…