128 citations · 597 across the 19 of their papers we have counts for
19 papers
Multi-parameter quantum estimation of single- and two-mode pure Gaussian states
Gabriele Bressanini, Marco G. Genoni, M. S. Kim +1
We discuss the ultimate precision bounds on the multiparameter estimation of single- and two-mode pure Gaussian states. By leveraging on previous approaches that focused on the est…
Completely Positive Divisibility Does Not Mean Markovianity
Simon Milz, M. S. Kim, Felix A. Pollock +1
In the classical domain, it is well-known that divisibility does not imply that a stochastic process is Markovian. However, for quantum processes, divisibility is often considered…
Learning Simon's quantum algorithm
Kwok Ho Wan, Feiyang Liu, Oscar Dahlsten +1
We consider whether trainable quantum unitaries can be used to discover quantum speed-ups for classical problems. Using methods recently developed for training quantum neural nets,…
From Quantum Optics to Quantum Technologies
Dan Browne, Sougato Bose, Florian Mintert +1
Quantum optics is the study of the intrinsically quantum properties of light. During the second part of the 20th century experimental and theoretical progress developed together; n…
Harvesting Multiqubit Entanglement from Ultrastrong Interactions in Circuit Quantum Electrodynamics
Federico Armata, Giuseppe Calajo, Tuomas Jaako +2
We analyze a multiqubit circuit QED system in the regime where the qubit-photon coupling dominates over the system's bare energy scales. Under such conditions a manifold of low-ene…
Vacuum Measurements and Quantum State Reconstruction of Phonons
Dingshun Lv, Shuoming An, Mark Um +4
A quantum state is fully characterized by its density matrix or equivalently by its quasiprobabilities in phase space. A scheme to identify the quasiprobabilities of a quantum stat…
Bound states and entanglement generation in waveguide quantum electrodynamics
Paolo Facchi, M. S. Kim, Saverio Pascazio +3
We investigate the behavior of two quantum emitters (two-level atoms) embedded in a linear waveguide, in a quasi-one-dimensional configuration. Since the atoms can emit, absorb and…
Recurrent delocalization and quasi-equilibration of photons in coupled circuit QED systems
Myung-Joong Hwang, M. S. Kim, Mahn-Soo Choi
We explore the photon population dynamics in two coupled circuit QED systems. For a sufficiently weak inter-cavity photon hopping, as the photon-cavity coupling increases, the dyna…
Gravitational Effects in Quantum Mechanics
A. D. K. Plato, C. N. Hughes, M. S. Kim
To date, both quantum theory, and Einstein's theory of general relativity have passed every experimental test in their respective regimes. Nevertheless, almost since their inceptio…
Probing anharmonicity of a quantum oscillator in an optomechanical cavity
Ludovico Latmiral, Federico Armata, Marco G. Genoni +2
We present a way of measuring with high precision the anharmonicity of a quantum oscillator coupled to an optical field via radiation pressure. Our protocol uses a sequence of puls…
Emergence of non-Markovianity in the emission process of an atom in a half-cavity
Tommaso Tufarelli, M. S. Kim, Francesco Ciccarello
We study quantum non-Markovianity in the early stage of the emission process of a two-level atom coupled to a semi-infinite waveguide, where the waveguide termination behaves as a…
Non-Markovianity of a quantum emitter in front of a mirror
Tommaso Tufarelli, M. S. Kim, Francesco Ciccarello
We consider a quantum emitter ("atom") radiating in a one-dimensional (1D) photonic waveguide in the presence of a single mirror, resulting in a delay differential equation for the…
Production of entanglement with highly-mixed states
Minsu Kang, M. S. Kim, Hyunseok Jeong
We study production of entanglement with highly-mixed states. We find that entanglement between highly mixed states can be generated via a direct unitary interaction even when both…
Phase Space Tomography of Matter-Wave Diffraction in the Talbot Regime
S. K. Lee, M. S. Kim, C. Szewc +1
We report on the theoretical investigation of Wigner distribution function (WDF) reconstruction of the motional quantum state of large molecules in de Broglie interference. De Brog…
Critical behavior in ultra-strong-coupled oscillators
Vivishek Sudhir, Marco G. Genoni, Jinhyoung Lee +1
We investigate the strong coupling regime of a linear - coupled harmonic oscillator system, by performing a direct diagonalization of the hamiltonian. It is shown that the $x…
Dynamical recurrence and the quantum control of coupled oscillators
Marco G. Genoni, A. Serafini, M. S. Kim +1
Controllability -- the possibility of performing any target dynamics by applying a set of available operations -- is a fundamental requirement for the practical use of any physical…
Reconstructing the quantum state of oscillator networks with a single qubit
Tommaso Tufarelli, Alessandro Ferraro, M. S. Kim +1
We introduce a scheme to reconstruct arbitrary states of networks composed of quantum oscillators--e.g., the motional state of trapped ions or the radiation state of coupled caviti…
Oscillator state reconstruction via tunable qubit coupling in Markovian environments
Tommaso Tufarelli, M. S. Kim, Sougato Bose
We show that a parametrically coupled qubit can be used to fully reconstruct the quantum state of a harmonic oscillator, even when both systems are subject to decoherence. By contr…
Bypassing state initialisation in perfect state transfer protocols on spin-chains
C. Di Franco, M. Paternostro, M. S. Kim
Although a complete picture of the full evolution of complex quantum systems would certainly be the most desirable goal, for particular Quantum Information Processing schemes such…