Ivan Rojkov
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View article: Non-linear cooling and control of a mechanical quantum harmonic oscillator
Non-linear cooling and control of a mechanical quantum harmonic oscillator Open
Non-linearities are a key feature allowing non-classical control of quantum harmonic oscillators. However, when non-linearities are strong, designing protocols for control is often difficult, placing a barrier to exploiting these propertie…
View article: Scalable dissipative quantum error correction for discrete-variable codes
Scalable dissipative quantum error correction for discrete-variable codes Open
Dissipative quantum error correction (QEC) autonomously protects quantum information using engineered dissipation and offers a promising alternative to error correction via measurement and feedback. However, scalability remains a challenge…
View article: Learning-agent-based approach to the characterization of open quantum systems
Learning-agent-based approach to the characterization of open quantum systems Open
Characterizing quantum processes is crucial for the execution of quantum algorithms on available quantum devices. A powerful framework for this purpose is the Quantum Model Learning Agent (QMLA) which characterizes a given system by learni…
View article: CVsim.jl: Continuous variable quantum system simulation package
CVsim.jl: Continuous variable quantum system simulation package Open
First official release of CVsim.jl It incorporates various state preparation protocols for Schrödinger's cat and Gottesman-Kitaev-Preskill (GKP) states, stabilization schemes for GKP codes, and functions for the calculation of Wigner quasi…
View article: Stabilization of cat-state manifolds using nonlinear reservoir engineering
Stabilization of cat-state manifolds using nonlinear reservoir engineering Open
We introduce a novel reservoir engineering approach for stabilizing multi-component Schrödinger's cat manifolds. The fundamental principle of the method lies in the destructive interference at crossings of gain and loss Hamiltonian terms i…
View article: PsPM-AOB_UW: Eye tracker (including pupillometry) measurements from an auditory oddball and a luminance task
PsPM-AOB_UW: Eye tracker (including pupillometry) measurements from an auditory oddball and a luminance task Open
This dataset includes eye tracker (including pupillometry) measurements from an auditory oddball task with an ITI of 2 s (session 1) and a luminance task in which discs with different shades of grey were presented. Also included are task i…
View article: PsPM-AOB_UW: Eye tracker (including pupillometry) measurements from an auditory oddball and a luminance task
PsPM-AOB_UW: Eye tracker (including pupillometry) measurements from an auditory oddball and a luminance task Open
This dataset includes eye tracker (including pupillometry) measurements from an auditory oddball task with an ITI of 2 s (session 1) and a luminance task in which discs with different shades of grey were presented. Also included are task i…
View article: Characterization of coherent errors in gate layers with robustness to Pauli noise
Characterization of coherent errors in gate layers with robustness to Pauli noise Open
Characterization of quantum devices generates insights into their sources of disturbances. State-of-the-art characterization protocols often focus on incoherent noise and eliminate coherent errors when using Pauli or Clifford twirling tech…
View article: Bias in Error-Corrected Quantum Sensing
Bias in Error-Corrected Quantum Sensing Open
The sensitivity afforded by quantum sensors is limited by decoherence. Quantum error correction (QEC) can enhance sensitivity by suppressing decoherence, but it has a side effect: it biases a sensor's output in realistic settings. If unacc…
View article: Generation of a Maximally Entangled State Using Collective Optical Pumping
Generation of a Maximally Entangled State Using Collective Optical Pumping Open
We propose and implement a novel scheme for dissipatively pumping two qubits into a singlet Bell state. The method relies on a process of collective optical pumping to an excited level, to which all states apart from the singlet are couple…
View article: Bias in error-corrected quantum sensing
Bias in error-corrected quantum sensing Open
The sensitivity afforded by quantum sensors is limited by decoherence. Quantum error correction (QEC) can enhance sensitivity by suppressing decoherence, but it has a side-effect: it biases a sensor's output in realistic settings. If unacc…