Recovering the full dimensionality of hyperentanglement in collinear photon pairs
arXiv:1910.10221 · doi:10.1103/PhysRevA.101.013834
Abstract
Exploiting hyperentanglement of photon pairs, that is, simultaneous entanglement in multiple degrees of freedom(DOFs), increases the dimensionality of Hilbert spaces for quantum information processing. However, generation of hyperentangled photon pairs collinearlly, while produces high brightness, results in a smaller Hilbert space due to the two photons being in the same spatial mode. In this letter, we point out that one can recover the full dimensionality of such hyperentanglement through a simple interference set up, similar to the time-reversed Hong-Ou-Mandel (TR-HOM) process. Different from the standard TR-HOM, we point out a critical phase condition has to be satisfied in order to recover the hyperentanglement. We theoretically analyze the realization of this approach and discuss the feasibility of generating truly hyperentangled photon pairs. Our proposed approach does not require post-selection and hence enables efficient hyper-entangled photon pairs generation for high-dimensional quantum applications.
arXiv comment5 pages, 2 figures, During the preparation of this manuscript, we noticed a similar work posted recently on arXiv:1910.07684. This work is developed independently
References in corpus (22)
- Quantum entanglement
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Beating the channel capacity limit for linear photonic superdense coding
- 18-qubit entanglement with photon's three degrees of freedom
- Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer
- Beating the channel capacity limit for superdense coding with entangled ququarts
- Discrete, Tunable Color Entanglement
- Distribution of high-dimensional entanglement via an intra-city free-space link
- Hyperentangled Bell-state analysis
- Superdense coding over optical fiber links with complete Bell-state measurements
- SuperDense Teleportation using Hyperentangled Photons
- Controllable two-photon interference with versatile quantum frequency processor
- Path-polarization hyperentangled and cluster states of photons on a chip
- Polarization entangled photon-pair source based on a type-II PPLN waveguide emitting at a telecom wavelength
- Hyper-entanglement of photons emitted by a quantum dot
- Polarization entanglement by time-reversed Hong-Ou-Mandel interference
- Fully guided-wave photon pair source for quantum applications
- Direct generation of frequency-bin entangled photons via two-period quasi-phase-matched parametric downconversion
- Hyperentanglement-enabled Direct Characterization of Quantum Dynamics
- Turn-Key Diode-Pumped All-Fiber Broadband Polarization-Entangled Photon Source
- Biphoton shaping with cascaded entangled-photon sources
- Deterministic separation of arbitrary photon pair states in integrated quantum circuits