OOIR: Observatory of International Research

Papers

(The TQCC of npj Quantum Information is 18. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-04-01 to 2024-04-01.)

Article	Citations
Ground-state energy estimation of the water molecule on a trapped-ion quantum computer	182
Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds	131
Variational fast forwarding for quantum simulation beyond the coherence time	129
Efficient and noise resilient measurements for quantum chemistry on near-term quantum computers	118
Quantum classifier with tailored quantum kernel	91
Emergence and control of complex behaviors in driven systems of interacting qubits with dissipation	86
Symmetry-resolved entanglement detection using partial transpose moments	85
Leakage reduction in fast superconducting qubit gates via optimal control	83
Laser-annealing Josephson junctions for yielding scaled-up superconducting quantum processors	81
Iterative quantum amplitude estimation	79
The Born supremacy: quantum advantage and training of an Ising Born machine	74
Resource-efficient digital quantum simulation of d-level systems for photonic, vibrational, and spin-s Hamiltonians	73
Unfolding quantum computer readout noise	68
Finding flows of a Navier–Stokes fluid through quantum computing	65
Solid-state qubits integrated with superconducting through-silicon vias	63
Low-frequency spin qubit energy splitting noise in highly purified 28Si/SiGe	63
Practical quantum computation of chemical and nuclear energy levels using quantum imaginary time evolution and Lanczos algorithms	62
Resource-efficient quantum algorithm for protein folding	62
Feasibility of satellite-to-ground continuous-variable quantum key distribution	60
Parallel quantum simulation of large systems on small NISQ computers	59
Full daylight quantum-key-distribution at 1550 nm enabled by integrated silicon photonics	58
Identifying optimal cycles in quantum thermal machines with reinforcement-learning	57
Saving superconducting quantum processors from decay and correlated errors generated by gamma and cosmic rays	56
Experimental authentication of quantum key distribution with post-quantum cryptography	53
Low rank representations for quantum simulation of electronic structure	53

High-fidelity manipulation of a qubit enabled by a manufactured nucleus	50
Single-atom energy-conversion device with a quantum load	47
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal	47
Machine learning of high dimensional data on a noisy quantum processor	47
Optimal operation points for ultrafast, highly coherent Ge hole spin-orbit qubits	46
Proposal for space-borne quantum memories for global quantum networking	46
Fundamental limits of quantum error mitigation	46
Efficient evaluation of quantum observables using entangled measurements	46
Entanglement across separate silicon dies in a modular superconducting qubit device	45
Nearest centroid classification on a trapped ion quantum computer	44
Classical variational simulation of the Quantum Approximate Optimization Algorithm	42
Scalable quantum computer with superconducting circuits in the ultrastrong coupling regime	42
A variational toolbox for quantum multi-parameter estimation	42
Flexible entanglement-distribution network with an AlGaAs chip for secure communications	40
Energy-participation quantization of Josephson circuits	40
Multi-exponential error extrapolation and combining error mitigation techniques for NISQ applications	40
Implementation of a 46-node quantum metropolitan area network	39
Spectrally reconfigurable quantum emitters enabled by optimized fast modulation	39
Imaging and certifying high-dimensional entanglement with a single-photon avalanche diode camera	38
High-performance quantum entanglement generation via cascaded second-order nonlinear processes	37
Effective routing design for remote entanglement generation on quantum networks	37
A quantum annealer with fully programmable all-to-all coupling via Floquet engineering	37
Experimental test of non-macrorealistic cat states in the cloud	36
Very low overhead fault-tolerant magic state preparation using redundant ancilla encoding and flag qubits	35
Gigahertz measurement-device-independent quantum key distribution using directly modulated lasers	35
Gate-free state preparation for fast variational quantum eigensolver simulations	35
Quantum-enhanced interferometry with large heralded photon-number states	34
Tight finite-key security for twin-field quantum key distribution	34
High fidelity two-qubit gates on fluxoniums using a tunable coupler	34
A neural network oracle for quantum nonlocality problems in networks	34
Spooky action at a global distance: analysis of space-based entanglement distribution for the quantum internet	33
Quantum circuit architecture search for variational quantum algorithms	33
Robust entanglement preparation against noise by controlling spatial indistinguishability	33
Conveyor-mode single-electron shuttling in Si/SiGe for a scalable quantum computing architecture	32
Multipartite entanglement analysis from random correlations	32
Preparation of hundreds of microscopic atomic ensembles in optical tweezer arrays	32
Accurate Lindblad-form master equation for weakly damped quantum systems across all regimes	31
Strategies for achieving high key rates in satellite-based QKD	31
Sudden death and revival of Gaussian Einstein–Podolsky–Rosen steering in noisy channels	31
Hamiltonian simulation in the low-energy subspace	31
Enhancing quantum cryptography with quantum dot single-photon sources	30
Implementation of quantum imaginary-time evolution method on NISQ devices by introducing nonlocal approximation	30
Dynamics of superconducting qubit relaxation times	30
Quantum teleportation with imperfect quantum dots	29
Adaptive quantum state tomography with neural networks	29
Detector-integrated on-chip QKD receiver for GHz clock rates	29
Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes	28
648 Hilbert-space dimensionality in a biphoton frequency comb: entanglement of formation and Schmidt mode decomposition	28
Proof-of-principle experimental demonstration of twin-field quantum key distribution over optical channels with asymmetric losses	28
Overcoming detection loss and noise in squeezing-based optical sensing	28

Experimental adaptive Bayesian estimation of multiple phases with limited data	27
Two-dimensional hard-core Bose–Hubbard model with superconducting qubits	27
Convex optimization of programmable quantum computers	27
Path-encoded high-dimensional quantum communication over a 2-km multicore fiber	26
In-situ measurements of fabrication induced strain in diamond photonic-structures using intrinsic colour centres	26
Observation of Bloch oscillations and Wannier-Stark localization on a superconducting quantum processor	26
Variational quantum state eigensolver	26
Storage and retrieval of microwave pulses with molecular spin ensembles	26
High-accuracy Ising machine using Kerr-nonlinear parametric oscillators with local four-body interactions	26
Variational quantum eigensolver with reduced circuit complexity	26
Machine learning aided carrier recovery in continuous-variable quantum key distribution	26
A quantum router architecture for high-fidelity entanglement flows in quantum networks	25
Experimental characterization of the energetics of quantum logic gates	25
Giant shift upon strain on the fluorescence spectrum of VNNB color centers in h-BN	25
Quantum Hall phases emerging from atom–photon interactions	25
Room-temperature coherent control of implanted defect spins in silicon carbide	25
Detecting non-Markovianity via quantified coherence: theory and experiments	24
Experimental demonstration of measurement-device-independent measure of quantum steering	24
Towards a microwave single-photon counter for searching axions	24
Leakage detection for a transmon-based surface code	24
Experimental quantum kernel trick with nuclear spins in a solid	24
Entropy production in continuously measured Gaussian quantum systems	24
Finite key effects in satellite quantum key distribution	24
Parameter estimation in quantum sensing based on deep reinforcement learning	24
Global correlation and local information flows in controllable non-Markovian open quantum dynamics	24
Quantum communication with itinerant surface acoustic wave phonons	23
Deterministic spin-photon entanglement from a trapped ion in a fiber Fabry–Perot cavity	23
Analyzing the performance of variational quantum factoring on a superconducting quantum processor	22
Multiplexed quantum transport using commercial off-the-shelf CMOS at sub-kelvin temperatures	22
Coherent manipulation and quantum phase interference in a fullerene-based electron triplet molecular qutrit	22
Quantum circuit cutting with maximum-likelihood tomography	22
Efficient computation of the Nagaoka–Hayashi bound for multiparameter estimation with separable measurements	22
Genuine quantum networks with superposed tasks and addressing	22
Free electrons can induce entanglement between photons	21
Quantum random number cloud platform	21
Quantum electromechanics with levitated nanoparticles	21
Quantum transport and localization in 1d and 2d tight-binding lattices	21
Direct estimation of quantum coherence by collective measurements	21
Characterizing decoherence rates of a superconducting qubit by direct microwave scattering	20
Computing secure key rates for quantum cryptography with untrusted devices	20
A machine learning approach to Bayesian parameter estimation	20
Characterization and control of open quantum systems beyond quantum noise spectroscopy	20
Counteracting dephasing in Molecular Nanomagnets by optimized qudit encodings	20
Circuit quantization with time-dependent magnetic fields for realistic geometries	20
A phononic interface between a superconducting quantum processor and quantum networked spin memories	20
Counterfactual ghost imaging	20
Measurement-free preparation of grid states	20
Electrical control of coherent spin rotation of a single-spin qubit	19
Temporal distinguishability in Hong-Ou-Mandel interference for harnessing high-dimensional frequency entanglement	19
Self-testing quantum systems of arbitrary local dimension with minimal number of measurements	19
Optimal teleportation via noisy quantum channels without additional qubit resources	19
Optimal control of stimulated Raman adiabatic passage in a superconducting qudit	19
3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator	19
Quasiprobability decompositions with reduced sampling overhead	19
Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices	18
Quantum sensors for microscopic tunneling systems	18
Real-time processing of stabilizer measurements in a bit-flip code	18
Bound state in a giant atom-modulated resonators system	18
Deep reinforcement learning for efficient measurement of quantum devices	18
Continuous-mode quantum key distribution with digital signal processing	18
Quantum Fisher information measurement and verification of the quantum Cramér–Rao bound in a solid-state qubit	18
Precise programmable quantum simulations with optical lattices	18
Long-time simulations for fixed input states on quantum hardware	18
Universal and operational benchmarking of quantum memories	18