4 papers
Causal inference with imperfect instrumental variables
Nikolai Miklin, Mariami Gachechiladze, George Moreno +1
Instrumental variables allow for quantification of cause and effect relationships even in the absence of interventions. To achieve this, a number of causal assumptions must be met,…
Quantifying causal influences in the presence of a quantum common cause
Mariami Gachechiladze, Nikolai Miklin, Rafael Chaves
Quantum mechanics challenges our intuition on the cause-effect relations in nature. Some fundamental concepts, including Reichenbach's common cause principle or the notion of local…
Changing the circuit-depth complexity of measurement-based quantum computation with hypergraph states
Mariami Gachechiladze, Otfried Gühne, Akimasa Miyake
While the circuit model of quantum computation defines its logical depth or "computational time" in terms of temporal gate sequences, the measurement-based model could allow totall…
The structure of ultrafine entanglement witnesses
Mariami Gachechiladze, Nikolai Wyderka, Otfried Gühne
An entanglement witness is an observable with the property that a negative expectation value signals the presence of entanglement. The question arises how a witness can be improved…