activity
20222026
most citedComparing bound entanglement of bell diagonal pairs of qutrits and ququarts

13 citations · 40 across the 11 of their papers we have counts for

collaborators

11 papers

quant-ph2026

Noise-robust 1-copy distillation protocol for all distillable Bell-diagonal qutrits

Tobias C. Sutter, Christopher Popp, Beatrix C. Hiesmayr

Entanglement distillation is the process of converting noisy entangled states into maximally entangled pure states via local operations and classical communication. A long-standing…

quant-ph2026

Resource State Distillation via Stabilizer Channels

Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr

Quantum technologies rely on high-quality resource states, such as maximally entangled or private states, which are indispensable for quantum communication and cryptography. In pra…

quant-ph2025

Computation of the Smooth Max-Mutual Information via Semidefinite Programming

Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr

We present an iterative algorithm based on semidefinite programming (SDP) for computing the quantum smooth max-mutual information of bipartite quantu…

quant-ph2025★ 2 cited

Local Invariance of Divergence-based Quantum Information Measures

Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr

Quantum information quantities, such as mutual information and entropies, are essential for characterizing quantum systems and protocols in quantum information science. In this con…

quant-ph2025★ 1 cited

Group-Theoretic Perspective on the PPT and Realignment Criteria in the Magic Simplex for Bipartite Qutrits

Tobias C. Sutter, Christopher Popp, Beatrix C. Hiesmayr

Entanglement is a key feature in many quantum technologies, including secure communication protocols and quantum computing. However, detecting it in mixed quantum states remains a…

quant-ph2025

The Impact of Architecture and Cost Function on Dissipative Quantum Neural Networks

Tobias C. Sutter, Christopher Popp, Beatrix C. Hiesmayr

Combining machine learning and quantum computation is a potential path towards powerful applications on quantum devices. Regarding this, quantum neural networks are a prominent app…

quant-ph2025★ 4 cited

Low-Fidelity Entanglement Distillation with FIMAX

Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr

Uncontrolled interactions with the environment introduce errors that remain a significant challenge to the reliability of quantum technologies using entanglement. An essential meth…

quant-ph2024

A Novel Stabilizer-based Entanglement Distillation Protocol for Qudits

Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr

Entanglement distillation, the process of converting weakly entangled states into maximally entangled ones using Local Operations and Classical Communication (LOCC), is pivotal for…

quant-ph2023★ 8 cited

Special features of the Weyl-Heisenberg Bell basis imply unusual entanglement structure of Bell-diagonal states

Christopher Popp, Beatrix C. Hiesmayr

Maximally entangled Bell states are of crucial importance for entanglement based methods in quantum information science. Typically, a standard construction of a complete orthonorma…

quant-ph2022★ 13 cited

Comparing bound entanglement of bell diagonal pairs of qutrits and ququarts

Christopher Popp, Beatrix C. Hiesmayr

We compare the classification as entangled or separable of Bell diagonal bipartite qudits with positive partial transposition (PPT) and their properties for different dimensions. F…

quant-ph2022★ 12 cited

Almost complete solution for the NP-hard separability problem of Bell diagonal qutrits

Christopher Popp, Beatrix C. Hiesmayr

With a probability of success of we solve the separability problem for Bell diagonal qutrit states with positive partial transposition (PPT). The separability problem, i.e.…