8 papers
Singlet-triplet oscillations in multivalley Si double quantum dots
Åukasz CywiÅski, Mats Volmer, Tom Struck +2
Charge separation from the to the state in a Si/SiGe double quantum dot is commonly used for initialization of spin qubits and Pauli-spin-blockade readout. It was u…
Statistical Structure of Charge Disorder in Si/SiGe Quantum Dots
Saeed Samadi, Åukasz CywiÅski, Jan A. Krzywda
Properties of quantum dot based spin qubits have significant inter-device variability due to unavoidable presence of various types of disorder in semiconductor nanostructures. A si…
Phenomenological quantum mechanics: II. Deducing the formalism from experimental observations
Piotr Szańkowski, Piotr SzaÅkowski, Davide Lonigro +5
We propose an exercise in which one attempts to deduce the formalism of quantum mechanics solely from phenomenological observations. The only assumed inputs are the multi-time prob…
Phenomenological quantum mechanics: I. Phenomenology of quantum observables
Piotr Szańkowski, Piotr SzaÅkowski, Davide Lonigro +5
We propose an exercise in which one attempts to deduce the formalism of quantum mechanics solely from phenomenological observations. The only assumed inputs are obtained through se…
Double or nothing: a Kolmogorov extension theorem for multitime (bi)probabilities in quantum mechanics
Davide Lonigro, Fattah Sakuldee, Åukasz CywiÅski +2
The multitime probability distributions obtained by repeatedly probing a quantum system via the measurement of an observable generally violate Kolmogorov's consistency property. Th…
Correlations of spin splitting and orbital fluctuations due to 1/f charge noise in the Si/SiGe Quantum Dot
Marcin KÄpa, Åukasz CywiÅski, Jan A. Krzywda
Fluctuations of electric fields can change the position of a gate-defined quantum dot in a semiconductor heterostructure. In the presence of magnetic field gradient, these stochast…