# Quantum interference enables constant-time quantum information processing

@article{Stobinska2019QuantumIE, title={Quantum interference enables constant-time quantum information processing}, author={Magdalena Stobinska and A. Buraczewski and M. Moore and William R. Clements and Jelmer J. Renema and S. W. Nam and Thomas Gerrits and Adriana E. Lita and W. Steven Kolthammer and A. Eckstein and Ian A. Walmsley}, journal={Science Advances}, year={2019}, volume={5} }

We found that quantum interference allows processing large sets of data faster and more accurately than computer algorithms. It is an open question how fast information processing can be performed and whether quantum effects can speed up the best existing solutions. Signal extraction, analysis, and compression in diagnostics, astronomy, chemistry, and broadcasting build on the discrete Fourier transform. It is implemented with the fast Fourier transform (FFT) algorithm that assumes a periodic…

## 17 Citations

### Photonic quantum information processing: A concise review

- PhysicsApplied Physics Reviews
- 2019

This concise review provides a flyover of some key aspects of the field, with a focus on experiment, and promises to out aside its reputation for requiring excessive resource overheads due to inefficient two-qubit gates.

### Two-boson quantum interference in time

- PhysicsProceedings of the National Academy of Sciences
- 2020

An unsuspected quantum interference mechanism is uncovered, which originates from the indistinguishability of identical bosons in time and is generic to any bosonic Bogoliubov transformation, so it is expected that wide implications in quantum physics are anticipated.

### Quantum simulations with multiphoton Fock states

- Physicsnpj Quantum Information
- 2021

Quantum simulations are becoming an essential tool for studying complex phenomena, e.g. quantum topology, quantum information transfer and relativistic wave equations, beyond the limitations of…

### Quantum-enhanced interferometry with large heralded photon-number states

- PhysicsNPJ quantum information
- 2020

High-gain parametric down-conversion sources and photon-number-resolving detectors are employed to perform interferometry with heralded quantum probes of sizes up to N, and in principle provide quantum-enhanced phase sensitivity even in the presence of significant optical loss.

### Proposal for distribution of multi-photon entanglement with TF-QKD rate-distance scaling

- Physics, Computer Science
- 2018

We propose a protocol to perform long-range distribution of near-maximally entangled multiphoton states, allowing versatile applications such as quantum key distribution (QKD) and quantum metrology…

### Quantum Sensing and Measurement

- Physics
- 2020

This Quantum Sensing and Measurement subtopic calls for proposals using quantum systems to achieve unprecedented measurement sensitivity and performance, including quantum-enhanced methodologies that…

### Quantum Fourier transform spectroscopy of biexciton

- Physics
- 2021

Fourier transform spectroscopy with classical interferometry corresponds to the measurement of a single-photon intensity spectrum from the viewpoint of the particle nature of light. In contrast, the…

### Design of High-Performance Photon-Number-Resolving Photodetectors Based on Coherently Interacting Nanoscale Elements

- Physics
- 2019

A number of applications in basic science and technology would benefit from high fidelity photon number resolving photodetectors. While some recent experimental progress has been made in this…

### Quantum simulations with multiphoton number states

- Physics2020 IEEE Photonics Conference (IPC)
- 2020

We show the first quantum simulation involving genuine number (Fock) states with up to four photons. Already this resource-efficient basic demonstration reveals topological matter not known before,…

### Entanglement enhanced by Kerr nonlinearity in a cavity-optomagnonics system.

- PhysicsOptics express
- 2020

It is proved that Kerr nonlinearity is reliable for the enhancement of entanglement and produces a small frequency shift in the optimal detuning in a cavity-optomagnonics system.

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