Photonic, Spin & Topological Qubits
Photonic fusion-based architectures and GKP states, silicon spin qubits, and Majorana-based topological qubits including the evidence debate.
Most influential
- Photonic Floquet topological insulators
The topological insulator is a fundamentally new phase of matter, with the striking property that the conduction of electrons occurs only on its surface, not within the bulk, and that conduction is topologically protected. Topological protection, the total lack of scattering of electron waves by disorder, is perhaps the most fascinating and technologically i…
Article3,330 citationsarXiv:1212.3146doi:10.1038/nature12066 - Advances in quantum teleportation
Quantum teleportation is one of the most important protocols in quantum information. By exploiting the physical resource of entanglement, quantum teleportation serves as a key primitive in a variety of quantum information tasks and represents an important building block for quantum technologies, with a pivotal role in the continuing progress of quantum commu…
Article901 citationsarXiv:1505.07831doi:10.1038/nphoton.2015.154 - An elementary quantum network of single atoms in optical cavities
Quantum networks are distributed quantum many-body systems with tailored topology and controlled information exchange. They are the backbone of distributed quantum computing architectures and quantum communication. Here we present a prototype of such a quantum network based on single atoms embedded in optical cavities. We show that atom-cavity systems form u…
Article894 citationsarXiv:1202.5955doi:10.1038/nature11023 - Boson Sampling on a Photonic Chip
While universal quantum computers ideally solve problems such as factoring integers exponentially more efficiently than classical machines, the formidable challenges in building such devices motivate the demonstration of simpler, problem-specific algorithms that still promise a quantum speedup. We construct a quantum boson sampling machine (QBSM) to sample t…
Article837 citationsarXiv:1212.2622doi:10.1126/science.1231692 - Towards quantum chemistry on a quantum computer
The fundamental problem faced in quantum chemistry is the calculation of molecular properties, which are of practical importance in fields ranging from materials science to biochemistry. Within chemical precision, the total energy of a molecule as well as most other properties, can be calculated by solving the Schrodinger equation. However, the computational…
Article796 citationsarXiv:0905.0887doi:10.1038/nchem.483 - Demonstration of a small programmable quantum computer with atomic qubits
Quantum computers can solve certain problems more efficiently than any possible conventional computer. Small quantum algorithms have been demonstrated on multiple quantum computing platforms, many specifically tailored in hardware to implement a particular algorithm or execute a limited number of computational paths. Here, we demonstrate a five-qubit trapped…
Article777 citationsarXiv:1603.04512doi:10.1038/nature18648 - Majorana Zero Modes and Topological Quantum Computation
We provide a current perspective on the rapidly developing field of Majorana zero modes in solid state systems. We emphasize the theoretical prediction, experimental realization, and potential use of Majorana zero modes in future information processing devices through braiding-based topological quantum computation. Well-separated Majorana zero modes should m…
Article1,183 citationsarXiv:1501.02813doi:10.1038/npjqi.2015.1 - Photonic Synapses Based on Inorganic Perovskite Quantum Dots for Neuromorphic ComputingArticle703 citationsdoi:10.1002/adma.201802883
- Photonic quantum information processing: A concise review
Photons have been a flagship system for studying quantum mechanics, advancing quantum information science, and developing quantum technologies. Quantum entanglement, teleportation, quantum key distribution and early quantum computing demonstrations were pioneered in this technology because photons represent a naturally mobile and low-noise system with quantu…
Article644 citationsarXiv:1907.06331doi:10.1063/1.5115814 - Quantum circuits with many photons on a programmable nanophotonic chip
Growing interest in quantum computing for practical applications has led to a surge in the availability of programmable machines for executing quantum algorithms. Present day photonic quantum computers have been limited either to non-deterministic operation, low photon numbers and rates, or fixed random gate sequences. Here we introduce a full-stack hardware…
Article567 citationsarXiv:2103.02109doi:10.1038/s41586-021-03202-1 - Realizing Majorana zero modes in superconductor-semiconductor heterostructures
Realizing topological superconductivity and Majorana zero modes in the laboratory is one of the major goals in condensed matter physics. We review the current status of this rapidly-developing field, focusing on semiconductor-superconductor proposals for topological superconductivity. Material science progress and robust signatures of Majorana zero modes in …
Review1,087 citationsarXiv:1707.04899doi:10.1038/s41578-018-0003-1 - Photonic Boson Sampling in a Tunable Circuit
Quantum computers are unnecessary for exponentially-efficient computation or simulation if the Extended Church-Turing thesis---a foundational tenet of computer science---is correct. The thesis would be directly contradicted by a physical device that efficiently performs a task believed to be intractable for classical computers. Such a task is BosonSampling: …
Article634 citationsarXiv:1212.2234doi:10.1126/science.1231440 - Observation of topologically protected bound states in photonic quantum walks
One of the most striking features of quantum mechanics is the appearance of phases of matter with topological origins. These phases result in remarkably robust macroscopic phenomena such as the edge modes in integer quantum Hall systems, the gapless surface states of topological insulators, and elementary excitations with non-abelian statistics in fractional…
Article609 citationsarXiv:1105.5334doi:10.1038/ncomms1872 - Engineered platforms for topological superconductivity and Majorana zero modes
Among the major approaches that are being pursued for realizing quantum bits, the Majorana-based platform has been the most recent to be launched. It attempts to realize qubits which store quantum information in a topologically-protected manner. The quantum information is protected by its nonlocal storage in localized and well-separated Majorana zero modes, …
Article338 citationsarXiv:2103.05548doi:10.1038/s41578-021-00336-6 - Two-Particle Bosonic-Fermionic Quantum Walk via Integrated Photonics
Quantum walk represents one of the most promising resources for the simulation of physical quantum systems, and has also emerged as an alternative to the standard circuit model for quantum computing. Up to now the experimental implementations have been restricted to single particle quantum walk, while very recently the quantum walks of two identical photons …
Article590 citationsarXiv:1106.5713doi:10.1103/physrevlett.108.010502
Newest work
- Coherent Optical Control of a Single Donor Electron SpinPreprintarXiv:2610.36423
- Minimal Projective Measurement Settings for Estimating Multiple ObservablesPreprintarXiv:2610.36525
- Measurement-induced entanglement phases in hyperbolic gauge-Higgs modelsPreprintarXiv:2610.36528
- Qubit-environment entanglement in pure dephasing dynamics for mixed initial statesPreprintarXiv:2610.36936
- Geometric aspects of fault tolerancePreprintarXiv:2610.35513
- Modeling the CNOT gate in Germanium double quantum dotsPreprintarXiv:2610.35799
- Probability bounds on trajectory-level exceedances of quantum speed limits under continuous-measurement feedbackPreprintarXiv:2610.36356
- Finite-temperature Quantum Quasinormal Mode Theory for Spatiotemporally-resolved Dissipative Cavity Quantum MagnonicsPreprintarXiv:2610.36385
- Minimal ancilla for boosting type-I photonic fusionPreprintarXiv:2610.34257
- Performing a Quantum Subroutine Using Cluster StatesPreprintarXiv:2610.32227