# Photonic, Spin & Topological Qubits Domain: Quantum Computing & Information · 238 papers indexed · newest 2026-10-27 Photonic fusion-based architectures and GKP states, silicon spin qubits, and Majorana-based topological qubits including the evidence debate. Key concepts: photonic quantum computing, fusion-based, GKP, spin qubit, silicon quantum dot, topological qubit, Majorana zero mode, measurement-based ## Most influential - **[Photonic Floquet topological insulators](https://space-kitty.com/papers/arxiv:1212.3146)**. Mikael C. Rechtsman, Julia M. Zeuner, Yonatan Plotnik et al. · 2013 · Nature (arXiv:1212.3146 · doi:10.1038/nature12066 · 3,330 citations). Source: > 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 important aspect of this material: it provides robustness that is otherwise known only for superconductors. However, unlike superconductivity and the quantum Hall effect, which necessitate low temperatures or magnetic fields, the immunity to… - **[Advances in quantum teleportation](https://space-kitty.com/papers/arxiv:1505.07831)**. Stefano Pirandola, Jens Eisert, Christian Weedbrook et al. · 2015 · Nature Photonics (arXiv:1505.07831 · doi:10.1038/nphoton.2015.154 · 901 citations). Source: > 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 communication, quantum computing and quantum networks. Here we review the basic theoretical ideas behind quantum teleportation and its variant protocols. We focus on the main experiments, together with the technical advantages and disadvantages … - **[An elementary quantum network of single atoms in optical cavities](https://space-kitty.com/papers/arxiv:1202.5955)**. Stephan Ritter, Christian Nölleke, Carolin Hahn et al. · 2012 · Nature (arXiv:1202.5955 · doi:10.1038/nature11023 · 894 citations). Source: > 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 universal nodes capable of sending, receiving, storing and releasing photonic quantum information. Quantum connectivity between nodes is achieved in the conceptually most fundamental way: by the coherent exchange of a single photon. We demon… - **[Boson Sampling on a Photonic Chip](https://space-kitty.com/papers/arxiv:1212.2622)**. Justin B. Spring, Benjamin J. Metcalf, Peter C. Humphreys et al. · 2012 · Science (arXiv:1212.2622 · doi:10.1126/science.1231692 · 837 citations). Source: > 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 the output distribution resulting from the nonclassical interference of photons in an integrated photonic circuit, a problem thought to be exponentially hard to solve classically. Unlike universal quantum computation, boson sampling merely r… - **[Towards quantum chemistry on a quantum computer](https://space-kitty.com/papers/arxiv:0905.0887)**. B. P. Lanyon, James Daniel Whitfield, Geoff Gillett et al. · 2010 · Nature Chemistry (arXiv:0905.0887 · doi:10.1038/nchem.483 · 796 citations). Source: > 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 resources required to obtain exact solutions on a conventional computer generally increase exponentially with the number of atoms involved. This renders such calculations intractable for all but the smallest of systems. Recently, an effici… - **[Demonstration of a small programmable quantum computer with atomic qubits](https://space-kitty.com/papers/arxiv:1603.04512)**. Shantanu Debnath, Norbert M. Linke, Caroline Figgatt et al. · 2016 · Nature (arXiv:1603.04512 · doi:10.1038/nature18648 · 777 citations). Source: > 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-ion quantum computer that can be programmed in software to implement arbitrary quantum algorithms by executing any sequence of universal quantum logic gates. We compile algorithms into a fully-connected set of gate operations that are nati… - **[Majorana Zero Modes and Topological Quantum Computation](https://space-kitty.com/papers/arxiv:1501.02813)**. Sankar Das Sarma, Michael Freedman, Chetan Nayak · 2015 · npj Quantum Information 1, 15001 (2015) (arXiv:1501.02813 · doi:10.1038/npjqi.2015.1 · 1,183 citations). Source: > 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 manifest non-Abelian braiding statistics suitable for unitary gate operations for topological quantum computation. Recent experimental work, following earlier theoretical predictions, has shown specific signatures consistent with the existen… - **[Photonic Synapses Based on Inorganic Perovskite Quantum Dots for Neuromorphic Computing](https://space-kitty.com/papers/doi:10.1002/adma.201802883)**. Yan Wang, Ziyu Lv, Jinrui Chen et al. · 2018 · Advanced Materials (doi:10.1002/adma.201802883 · 703 citations). Source: - **[Photonic quantum information processing: A concise review](https://space-kitty.com/papers/arxiv:1907.06331)**. Sergei Slussarenko, Geoff J. Pryde · 2019 · Applied Physics Reviews (arXiv:1907.06331 · doi:10.1063/1.5115814 · 644 citations). Source: > 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 quantum-limited detection readily available. The quantum states of individual photons can be manipulated with very high precision using interferometry, an experimental staple that has been under continuous development since the 19th century. The … - **[Quantum circuits with many photons on a programmable nanophotonic chip](https://space-kitty.com/papers/arxiv:2103.02109)**. J. M. Arrazola, V. Bergholm, K. Brádler et al. · 2021 · Nature (arXiv:2103.02109 · doi:10.1038/s41586-021-03202-1 · 567 citations). Source: > 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-software system for executing many-photon quantum circuits using integrated nanophotonics: a programmable chip, operating at room temperature and interfaced with a fully automated control system. It enables remote users to execute quantum … - **[Realizing Majorana zero modes in superconductor-semiconductor heterostructures](https://space-kitty.com/papers/arxiv:1707.04899)**. R. M. Lutchyn, E. P. A. M. Bakkers, L. P. Kouwenhoven et al. · 2017 · Nat Rev Mater 3, 52 - 68 (2018) (arXiv:1707.04899 · doi:10.1038/s41578-018-0003-1 · 1,087 citations). Source: > 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 recent experiments are discussed. After a brief introduction to the subject, we outline several next-generation experiments probing exotic properties of Majorana zero modes, including fusion rules and non-Abelian exchange statistics. Finall… - **[Photonic Boson Sampling in a Tunable Circuit](https://space-kitty.com/papers/arxiv:1212.2234)**. Matthew A. Broome, Alessandro Fedrizzi, Saleh Rahimi-Keshari et al. · 2012 · Science (arXiv:1212.2234 · doi:10.1126/science.1231440 · 634 citations). Source: > 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: obtaining a distribution of n bosons scattered by some linear-optical unitary process. Here we test the central premise of BosonSampling, experimentally verifying that the amplitudes of 3-photon scattering processes are given by the permane… - **[Observation of topologically protected bound states in photonic quantum walks](https://space-kitty.com/papers/arxiv:1105.5334)**. Takuya Kitagawa, Matthew A. Broome, Alessandro Fedrizzi et al. · 2012 · Nature Communications (arXiv:1105.5334 · doi:10.1038/ncomms1872 · 609 citations). Source: > 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 quantum Hall systems and topological superconductors. Many of these states hold promise in the applications to quantum memories and quantum computation. Artificial quantum systems, with their precise controllability, provide a versatile pl… - **[Engineered platforms for topological superconductivity and Majorana zero modes](https://space-kitty.com/papers/arxiv:2103.05548)**. Karsten Flensberg, Felix von Oppen, Ady Stern · 2021 · Nature Reviews Materials (arXiv:2103.05548 · doi:10.1038/s41578-021-00336-6 · 338 citations). Source: > 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, and manipulated by exploiting their nonabelian quantum exchange properties. Realizing these topological qubits is experimentally challenging, requiring superconductivity, helical electrons (created by spin-orbit coupling) and breaking of ti… - **[Two-Particle Bosonic-Fermionic Quantum Walk via Integrated Photonics](https://space-kitty.com/papers/arxiv:1106.5713)**. Linda Sansoni, Fabio Sciarrino, Giuseppe Vallone et al. · 2012 · Physical Review Letters (arXiv:1106.5713 · doi:10.1103/physrevlett.108.010502 · 590 citations). Source: > 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 have been reported. Here, for the first time, we investigate how the particle statistics, either bosonic or fermionic, influences a two-particle discrete quantum walk. Such experiment has been realized by adopting two-photon entangled state… ## Newest - **[Coherent Optical Control of a Single Donor Electron Spin](https://space-kitty.com/papers/arxiv:2610.36423)**. Yuxi Jiang, Amirehsan Alizadehherfati, Christine Falter et al. · 2026 (arXiv:2610.36423). Source: - **[Minimal Projective Measurement Settings for Estimating Multiple Observables](https://space-kitty.com/papers/arxiv:2610.36525)**. Yibin Huang, Muchun Yang, D. L. Zhou · 2026 (arXiv:2610.36525). Source: - **[Measurement-induced entanglement phases in hyperbolic gauge-Higgs models](https://space-kitty.com/papers/arxiv:2610.36528)**. Cole Kelson-Packer, Hiroki Sukeno, Akimasa Miyake · 2026 (arXiv:2610.36528). Source: - **[Qubit-environment entanglement in pure dephasing dynamics for mixed initial states](https://space-kitty.com/papers/arxiv:2610.36936)**. Małgorzata Strzałka, Nico Peters, Laura Ares et al. · 2026 (arXiv:2610.36936). Source: - **[Geometric aspects of fault tolerance](https://space-kitty.com/papers/arxiv:2610.35513)**. Jonathan Conrad · 2026 (arXiv:2610.35513). Source: - **[Modeling the CNOT gate in Germanium double quantum dots](https://space-kitty.com/papers/arxiv:2610.35799)**. Mauricio J. Rodriguez, Yann-Michel Niquet · 2026 (arXiv:2610.35799). Source: - **[Probability bounds on trajectory-level exceedances of quantum speed limits under continuous-measurement feedback](https://space-kitty.com/papers/arxiv:2610.36356)**. Kohei Kobayashi · 2026 (arXiv:2610.36356). Source: - **[Finite-temperature Quantum Quasinormal Mode Theory for Spatiotemporally-resolved Dissipative Cavity Quantum Magnonics](https://space-kitty.com/papers/arxiv:2610.36385)**. Lars Meschede, Daniel D. A. Clarke, Ortwin Hess · 2026 (arXiv:2610.36385). Source: - **[Minimal ancilla for boosting type-I photonic fusion](https://space-kitty.com/papers/arxiv:2610.34257)**. A. A. Melkozerov, S. S. Straupe, M. Yu. Saygin · 2026 (arXiv:2610.34257). Source: - **[Performing a Quantum Subroutine Using Cluster States](https://space-kitty.com/papers/arxiv:2610.32227)**. Sakibul Islam Rayhan, Karima Hassan, Md Rasedujjaman et al. · 2026 (arXiv:2610.32227). Source: --- Space Kitty Archive · https://space-kitty.com · API: https://space-kitty.com/api/v1 · MCP: https://space-kitty.com/mcp · Premium: $0.20/request via x402 (Base Sepolia (testnet)). Metadata: arXiv (CC0), OpenAlex (CC0), Europe PMC (CC BY/CC0 works), ClinicalTrials.gov.