401 citations · 740 across the 15 of their papers we have counts for
12 papers · 1 filter
Restoring polarization entanglement from solid-state photon sources by time-dependent photonic control
Ismail Nassar, Dan Cogan, Ido Schwartz
Quantum states of light are central resources for quantum communication, networking, and photonic information processing. In many quantum emitters, coherent internal dynamics arisi…
Continuous and deterministic all-photonic cluster state of indistinguishable photons
Zu-En Su, Boaz Taitler, Ido Schwartz +5
Cluster states are key resources for measurement-based quantum information processing. Photonic cluster and graph states, in particular, play indispensable roles in quantum network…
A deterministic source of indistinguishable photons in a cluster state
Dan Cogan, Zu-En Su, Oded Kenneth +1
Measurement-based quantum communication relies on the availability of highly entangled multi-photon cluster states. The inbuilt redundancy in the cluster allows communication betwe…
Quantum tomography of entangled spin-multi-photon states
Dan Cogan, Giora Peniakov, Oded Kenneth +2
We present a novel method for quantum tomography of multi-qubit states. We apply the method to spin-multi-photon states, which we produce by periodic excitation of a semiconductor…
Complete state tomography of a quantum dot confined spin qubit
Dan Cogan, Giora Peniakov, Zu-En Su +1
Semiconductor quantum dots are probably the preferred choice for interfacing anchored, matter spin qubits and flying photonic qubits. While full tomography of a flying qubit or lig…
Accessing the dark exciton spin in deterministic quantum-dot microlenses
Tobias Heindel, Alexander Thoma, Ido Schwartz +11
The dark exciton state in semiconductor quantum dots constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state…
On-demand source of maximally entangled photon-pairs using the biexciton-exciton radiative cascade
R. Winik, D. Cogan, Y. Don +7
We perform full time resolved tomographic measurements of the polarization state of pairs of photons emitted during the radiative cascade of the confined biexciton in a semiconduct…
Deterministic Generation of a Cluster State of Entangled Photons
Ido Schwartz, Dan Cogan, Emma R. Schmidgall +5
We use semiconductor quantum dots, "artificial atoms," to implement a scheme for deterministic generation of long strings of entangled photons in a cluster state, an important reso…
Deterministic Coherent Writing of a Long-Lived Semiconductor Spin Qubit Using One Ultrafast Optical Pulse
I. Schwartz, D. Cogan, E. R. Schmidgall +4
We use one single, few-picosecond-long, variably polarized laser pulse to deterministically write any selected spin state of a quantum dot confined dark exciton whose life and cohe…
All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
E. R. Schmidgall, I. Schwartz, D. Cogan +4
Semiconductor quantum dots are considered to be the leading venue for fabricating on-demand sources of single photons. However, the generation of long-lived dark excitons imposes s…
Determinstic Generation of a Quantum Dot-Confined Triexciton and its Radiative Decay via Three-Photon Cascade
E. R. Schmidgall, I. Schwartz, L. Gantz +3
Semiconductor quantum dots (QDs) have potential applications in quantum information processing due to the fact that they are potential on-demand sources of single and entangled pho…
Determinisitic Writing and Control of the Dark Exciton Spin using Short Single Optical Pulses
I. Schwartz, E. R. Schmidgall, L. Gantz +5
We demonstrate that the quantum dot-confined dark exciton forms a long-lived integer spin solid state qubit which can be deterministically on-demand initiated in a pure state by on…