Related papers: Teleportation-based error correction protocol of time-frequency qubits states

Related papers

Frequency-Time Multiplexing for Near-Deterministic Generation of n-Photon Frequency-Bin States [0.0]
We consider active time multiplexing to generate n-photon states, where n single photons with n same temporal mode occupy.<n>We devise an approach that uses optical quantum memories to manipulate the frequency and temporal modes of overlapping n photons.<n>We calculate multiphoton state generation rates that, accounting for loss, are realistically achievable with commercially available hardware.
arXiv Detail & Related papers (2026-03-03T23:09:57Z)
GKP-inspired high-dimensional superdense coding with energy-time entanglement [5.749045484170813]
We propose a high-dimensional superdense coding protocol using energy-time entangled states.<n>Inspired by GKP codes, our protocol involves discretizing the continuous time and frequency degrees of freedom.<n>Our results beat the rate achievable using a single-photon frequency comb with identical parameters by 4.6 times.
arXiv Detail & Related papers (2026-02-16T19:01:59Z)
Generation of frequency-bin-encoded dual-rail cluster states via time-frequency multiplexing of microwave photonic qubits [3.3238173494583614]
Cluster states are multi-qubit entangled states with broad applications such as quantum metrology and one-way quantum computing.<n>We present a protocol to generate frequency-bin-encoded dual-rail cluster states using a superconducting circuit.<n>We implement time-frequency multiplexing by sequentially emitting co-propagating microwave photons of distinct frequencies.
arXiv Detail & Related papers (2025-08-14T18:00:13Z)
Acoustic phonon phase gates with number-resolving phonon detection [36.29277627484587]
Itinerant phonons in quantum acoustics, combined with superconducting qubits, offer a compelling alternative to the quantum optics approach.<n>We implement phonon phase control using the frequency-dependent scattering of phonon states from a superconducting transmon qubit.<n>The acoustic interferometer used to measure the resulting phonon phase achieves a noise-floor-limited Hong-Ou-Mandel interference visibility of 98.1%.
arXiv Detail & Related papers (2025-03-05T20:56:35Z)
Purifying quantum-dot light in a coherent frequency interface [39.58317527488534]
Quantum networks operate in the telecom wavelengths to take advantage of low-loss transmission in optical fibres. Bright quantum dots (QDs) emitting highly indistinguishable quantum states of light, such as InGaAs QDs, often emit photons in the near infrared. We report a method for simultaneously implementing spectral purification and frequency shifting of single photons from QD sources to the C-band in a periodically poled Lithium Niobate waveguide.
arXiv Detail & Related papers (2024-07-11T18:02:43Z)
Entanglement of photonic modes from a continuously driven two-level system [34.50067763557076]
We experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive.<n>We show that entanglement is generated between modes extracted from the two sidebands of the resonance fluorescence spectrum.<n>Our approach can be utilized to distribute entanglement at a high rate in various physical platforms.
arXiv Detail & Related papers (2024-07-10T18:48:41Z)
Realizing fracton order from long-range quantum entanglement in programmable Rydberg atom arrays [45.19832622389592]
Storing quantum information requires battling quantum decoherence, which results in a loss of information over time. To achieve error-resistant quantum memory, one would like to store the information in a quantum superposition of degenerate states engineered in such a way that local sources of noise cannot change one state into another. We show that this platform also allows to detect and correct certain types of errors en route to the goal of true error-resistant quantum memory.
arXiv Detail & Related papers (2024-07-08T12:46:08Z)
Gottesman-Kitaev-Preskill encoding in continuous modal variables of single photons [0.0]
We introduce a new method for encoding GKP states in propagating fields using single photons. GKP states are highly correlated states described by collective continuous modes, as time and frequency. We show that the obtained code can be corrected for displacements in time-frequency phase space.
arXiv Detail & Related papers (2023-10-19T09:55:41Z)
Increasing Quantum Communication Rates Using Hyperentangled Photonic States [10.785645909949073]
Entanglement is a fundamental resource for quantum communication and information processing. We propose a technique for achieving higher transmission rates for quantum communication by using hyperentangled states.
arXiv Detail & Related papers (2023-07-12T07:35:49Z)
Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states. Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
arXiv Detail & Related papers (2022-12-22T23:32:21Z)
Amplification of cascaded downconversion by reusing photons with a switchable cavity [62.997667081978825]
We propose a scheme to amplify triplet production rates by using a fast switch and a delay loop. Our proof-of-concept device increases the rate of detected photon triplets as predicted.
arXiv Detail & Related papers (2022-09-23T15:53:44Z)
Experimental Multi-state Quantum Discrimination in the Frequency Domain with Quantum Dot Light [40.96261204117952]
In this work, we present the experimental realization of a protocol employing a time-multiplexing strategy to optimally discriminate among eight non-orthogonal states. The experiment was built on a custom-designed bulk optics analyser setup and single photons generated by a nearly deterministic solid-state source. Our work paves the way for more complex applications and delivers a novel approach towards high-dimensional quantum encoding and decoding operations.
arXiv Detail & Related papers (2022-09-17T12:59:09Z)
Single-photon nonlocality in quantum networks [55.41644538483948]
We show that the nonlocality of single-photon entangled states can nevertheless be revealed in a quantum network made only of beamsplitters and photodetectors. Our results show that single-photon entanglement may constitute a promising solution to generate genuine network-nonlocal correlations useful for Bell-based quantum information protocols.
arXiv Detail & Related papers (2021-08-03T20:13:24Z)
Optimal qubit circuits for quantum-enhanced telescopes [0.0]
By using distributed entanglement, it is possible to eliminate the loss of stellar photons during transmission over the baselines. The first protocol is a sequence of gates using nonlinear optical elements, optimized over all possible measurement schemes to saturate the Cram'er-Rao bound. The second approach builds on an existing protocol, which encodes the time of arrival of the stellar photon into a quantum memory.
arXiv Detail & Related papers (2021-08-02T21:02:09Z)
Quantum communication with ultrafast time-bin qubits [0.0]
We experimentally demonstrate the feasibility of picosecond time-bin states of light, known as ultrafast time-bins, for applications in quantum communications. With the ability to measure time-bin superpositions with excellent phase stability, we enable the use of temporal states in efficient quantum key distribution protocols.
arXiv Detail & Related papers (2021-06-17T22:08:08Z)
Ion-Photonic Frequency Qubit Correlations for Quantum Networks [0.0]
Efficiently scaling quantum networks to long ranges requires local processing nodes to perform basic computation and communication tasks. Most ions suitable for quantum computing emit photons in visible to near ultraviolet (UV) frequency ranges poorly suited to long-distance fibre optical based networking. We demonstrate a frequency encoding ion-photon entanglement protocol in $171$Yb$+$ with correlations equivalent to 92.4(8)% fidelity using a purpose-built UV hyperfine spectrometer.
arXiv Detail & Related papers (2021-04-12T03:55:07Z)
Telecom-heralded entanglement between remote multimode solid-state quantum memories [55.41644538483948]
Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation. Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories. We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
arXiv Detail & Related papers (2021-01-13T14:31:54Z)
Frequency-Domain Quantum Interference with Correlated Photons from an Integrated Microresonator [96.25398432840109]
We report frequency-domain Hong-Ou-Mandel interference with spectrally distinct photons generated from a chip-based microresonator. Our work establishes four-wave mixing as a tool for selective high-fidelity two-photon operations in the frequency domain.
arXiv Detail & Related papers (2020-03-14T01:48:39Z)

This list is automatically generated from the titles and abstracts of the papers in this site.