Zlatko Minev
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View article: Quantum-Classical Separation in Bounded-Resource Tasks Arising from Measurement Contextuality
Quantum-Classical Separation in Bounded-Resource Tasks Arising from Measurement Contextuality Open
The prevailing view is that quantum phenomena can be harnessed to tackle certain problems beyond the reach of classical approaches. Quantifying this capability as a quantum-classical separation and demonstrating it on current quantum proce…
View article: Measuring central charge on a universal quantum processor
Measuring central charge on a universal quantum processor Open
This repository contains the error-mitigated experimental data obtained from IBM quantum processors and the post-processing code for extracting the central charge, as well as numerical simulations, which are used in the paper Measuring cen…
View article: Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials
Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials Open
The remarkable complexity of a topologically ordered many-body quantum system is encoded in the characteristics of its anyons. Quintessential predictions emanating from this complexity employ the Fibonacci string net condensate (Fib SNC) a…
View article: Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials
Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials Open
The remarkable complexity of a topologically ordered many-body quantum system is encoded in the characteristics of its anyons. Quintessential predictions emanating from this complexity employ the Fibonacci string net condensate (Fib SNC) a…
View article: Krylov diagonalization of large many-body Hamiltonians on a quantum processor
Krylov diagonalization of large many-body Hamiltonians on a quantum processor Open
View article: Krylov diagonalization of large many-body Hamiltonians on a quantum processor
Krylov diagonalization of large many-body Hamiltonians on a quantum processor Open
View article: Demonstration of robust and efficient quantum property learning with shallow shadows
Demonstration of robust and efficient quantum property learning with shallow shadows Open
Extracting information efficiently from quantum systems is crucial for quantum information processing. Classical shadows enable predicting many properties of arbitrary quantum states using few measurements. While random single-qubit measur…
View article: Uncovering local integrability in quantum many-body dynamics
Uncovering local integrability in quantum many-body dynamics Open
View article: Efficient Long-Range Entanglement Using Dynamic Circuits
Efficient Long-Range Entanglement Using Dynamic Circuits Open
Quantum simulation traditionally relies on unitary dynamics, inherently imposing efficiency constraints on the generation of intricate entangled states. In principle, these limitations can be superseded by nonunitary, dynamic circuits. The…
View article: Entanglement-enhanced learning of quantum processes at scale
Entanglement-enhanced learning of quantum processes at scale Open
Learning unknown processes affecting a quantum system reveals underlying physical mechanisms and enables suppression, mitigation, and correction of unwanted effects. Describing a general quantum process requires an exponentially large numb…
View article: Publisher Correction: Observation of Josephson harmonics in tunnel junctions
Publisher Correction: Observation of Josephson harmonics in tunnel junctions Open
View article: Demonstration of Robust and Efficient Quantum Property Learning with Shallow Shadows
Demonstration of Robust and Efficient Quantum Property Learning with Shallow Shadows Open
Extracting information efficiently from quantum systems is a major component of quantum information processing tasks. Randomized measurements, or classical shadows, enable predicting many properties of arbitrary quantum states using few me…
View article: Observation of Josephson harmonics in tunnel junctions
Observation of Josephson harmonics in tunnel junctions Open
View article: Machine Learning for Practical Quantum Error Mitigation
Machine Learning for Practical Quantum Error Mitigation Open
Quantum computers progress toward outperforming classical supercomputers, but quantum errors remain their primary obstacle. The key to overcoming errors on near-term devices has emerged through the field of quantum error mitigation, enabli…
View article: Efficient Long-Range Entanglement using Dynamic Circuits
Efficient Long-Range Entanglement using Dynamic Circuits Open
Quantum simulation traditionally relies on unitary dynamics, inherently imposing efficiency constraints on the generation of intricate entangled states. In principle, these limitations can be superseded by non-unitary, dynamic circuits. Th…
View article: Uncovering Local Integrability in Quantum Many-Body Dynamics
Uncovering Local Integrability in Quantum Many-Body Dynamics Open
Interacting many-body quantum systems and their dynamics, while fundamental to modern science and technology, are formidable to simulate and understand. However, by discovering their symmetries, conservation laws, and integrability one can…
View article: Model-free readout-error mitigation for quantum expectation values
Model-free readout-error mitigation for quantum expectation values Open
Measurements on current quantum processors are subject to hardware\nimperfections that lead to readout errors. These errors manifest themselves as\na bias in quantum expectation values. Here, we propose a very simple method\nthat forces th…
View article: Probabilistic error cancellation with sparse Pauli-Lindblad models on noisy quantum processors
Probabilistic error cancellation with sparse Pauli-Lindblad models on noisy quantum processors Open
Noise in pre-fault-tolerant quantum computers can result in biased estimates of physical observables. Accurate bias-free estimates can be obtained using probabilistic error cancellation (PEC), which is an error-mitigation technique that ef…
View article: Exploiting Dynamic Quantum Circuits in a Quantum Algorithm with Superconducting Qubits
Exploiting Dynamic Quantum Circuits in a Quantum Algorithm with Superconducting Qubits Open
The execution of quantum circuits on real systems has largely been limited to those which are simply time-ordered sequences of unitary operations followed by a projective measurement. As hardware platforms for quantum computing continue to…
View article: Energy-participation quantization of Josephson circuits
Energy-participation quantization of Josephson circuits Open
View article: Circuit quantum electrodynamics (cQED) with modular quasi-lumped models
Circuit quantum electrodynamics (cQED) with modular quasi-lumped models Open
Extracting the Hamiltonian of interacting quantum-information processing systems is a keystone problem in the realization of complex phenomena and large-scale quantum computers. The remarkable growth of the field increasingly requires prec…
View article: Exploiting dynamic quantum circuits in a quantum algorithm with superconducting qubits
Exploiting dynamic quantum circuits in a quantum algorithm with superconducting qubits Open
The execution of quantum circuits on real systems has largely been limited to those which are simply time-ordered sequences of unitary operations followed by a projective measurement. As hardware platforms for quantum computing continue to…
View article: Model-free readout-error mitigation for quantum expectation values
Model-free readout-error mitigation for quantum expectation values Open
Measurements on current quantum processors are subject to hardware imperfections that lead to readout errors. These errors manifest themselves as a bias in quantum expectation values. Here, we propose a very simple method that forces the b…
View article: To catch and reverse a quantum jump mid-flight
To catch and reverse a quantum jump mid-flight Open
View article: Cavity Attenuators for Superconducting Qubits
Cavity Attenuators for Superconducting Qubits Open
Dephasing induced by residual thermal photons in the readout resonator is a\nleading factor limiting the coherence times of qubits in the circuit QED\narchitecture. This residual thermal population, of the order of\n$10^{-1}$--$10^{-3}$, i…
View article: On catching and reversing a quantum jump mid-flight
On catching and reversing a quantum jump mid-flight Open
A quantum system driven by a weak deterministic force while under strong continuous energy measurement exhibits quantum jumps between its energy levels (Nagourney et al., 1986, Sauter et al., 1986, Bergquist et al., 1986). This celebrated …
View article: To catch and reverse a quantum jump mid-flight
To catch and reverse a quantum jump mid-flight Open
Quantum physics was invented to account for two fundamental features of measurement results -- their discreetness and randomness. Emblematic of these features is Bohr's idea of quantum jumps between two discrete energy levels of an atom. E…