Gerhard Hellstern
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Quantum workshop for IT professionals Open
Quantum computing is gaining strategic relevance beyond research-driven industries. However, many companies lack the expertise to evaluate its potential for real-world applications. Traditional training formats often focus on physical prin…
Quantum Leap in Finance: Economic Advantages, Security, and Post-Quantum Readiness Open
This paper provides an in-depth review of the evolving role of quantum computing in the financial sector, emphasizing both its computational potential and cybersecurity implications. Distinguishing itself from existing surveys, this work i…
Quantum Workshop for IT-Professionals Open
Quantum computing is gaining strategic relevance beyond research-driven industries. However, many companies lack the expertise to evaluate its potential for real-world applications. Traditional training formats often focus on physical prin…
Extrapolation method to optimize linear-ramp QAOA parameters: Evaluation of QAOA runtime scaling Open
The Quantum Approximate Optimization Algorithm (QAOA) has been suggested as a promising candidate for the solution of combinatorial optimization problems. Yet, whether - or under what conditions - it may offer an advantage compared to clas…
From portfolio optimization to quantum blockchain and security: a systematic review of quantum computing in finance Open
The rapid advancement of quantum computing has sparked a considerable increase in research attention to quantum technologies. These advances span fundamental theoretical inquiries into quantum information and the exploration of diverse app…
Introducing quantum information and computation to a broader audience with MOOCs at OpenHPI Open
Quantum computing is an exciting field with high disruptive potential, but very difficult to access. For this reason, many approaches to teaching quantum computing are being developed worldwide. This always raises questions about the didac…
Introducing Quantum Information and Computation to a Broader Audience with MOOCs at OpenHPI Open
Quantum computing is an exciting field with high disruptive potential, but very difficult to access. For this reason, numerous concepts are being developed worldwide on how quantum computing can be taught. This always raises questions abou…
Introducing Quantum Information and Computation to a Broader Audience with MOOCs at OpenHPI Open
Quantum computing is an exciting field with high disruptive potential, but very difficult to access. For this reason, many approaches to teaching quantum computing are being developed worldwide. This always raises questions about the didac…
Quantum computer based feature selection in machine learning Open
The problem of selecting an appropriate number of features in supervised learning problems is investigated. Starting with common methods in machine learning, the feature selection task is treated as a quadratic unconstrained optimisation p…
Quantum computer based Feature Selection in Machine Learning Open
The problem of selecting an appropriate number of features in supervised learning problems is investigated in this paper. Starting with common methods in machine learning, we treat the feature selection task as a quadratic unconstrained op…
From Portfolio Optimization to Quantum Blockchain and Security: A Systematic Review of Quantum Computing in Finance Open
In this paper, we provide an overview of the recent work in the quantum finance realm from various perspectives. The applications in consideration are Portfolio Optimization, Fraud Detection, and Monte Carlo methods for derivative pricing …
Benchmarking the performance of portfolio optimization with QAOA Open
We present a detailed study of portfolio optimization using different versions of the quantum approximate optimization algorithm (QAOA). For a given list of assets, the portfolio optimization problem is formulated as quadratic binary optim…
Heart Disease Detection using Quantum Computing and Partitioned Random Forest Methods Open
Heart disease morbidity and mortality rates are increasing, which has a negative impact on public health and the global economy. Early detection of heart disease reduces the incidence of heart mortality and morbidity. Recent research has u…
Benchmarking the performance of portfolio optimization with QAOA Open
We present a detailed study of portfolio optimization using different versions of the quantum approximate optimization algorithm (QAOA). For a given list of assets, the portfolio optimization problem is formulated as quadratic binary optim…
Analysis of a hybrid quantum network for classification tasks Open
In the era of noisy intermediate scaled quantum computers, one of the possible applications to search for an advantage of quantum computing is machine learning. Here, we report about an analysis, where a hybrid quantum‐classical network is…