170 citations · 934 across the 32 of their papers we have counts for
32 papers
Quantum error cancellation in photonic systems -- undoing photon losses
Adam Taylor, Gabriele Bressanini, Hyukjoon Kwon +1
Real photonic devices are subject to photon losses that can decohere quantum information encoded in the system. In the absence of full fault tolerance, quantum error mitigation tec…
Trade-off between Information Gain and Disturbance in Local Discrimination of Entangled Quantum States
Youngrong Lim, Minki Hhan, Hyukjoon Kwon
We establish an information gain-disturbance trade-off relation in local state discrimination. Our result demonstrates a fundamental limitation of local strategy to discriminate en…
Gaussian boson sampling at finite temperature
Gabriele Bressanini, Hyukjoon Kwon, M. S. Kim
Gaussian boson sampling (GBS) is a promising candidate for an experimental demonstration of quantum advantage using photons. However, sufficiently large noise might hinder a GBS im…
Extending Classically Simulatable Bounds of Clifford Circuits with Nonstabilizer States via Framed Wigner Functions
Guedong Park, Hyukjoon Kwon, Hyunseok Jeong
The Wigner function formalism has played a pivotal role in examining the non-classical aspects of quantum states and their classical simulatability. Nevertheless, its application i…
Estimating Entanglement Entropy via Variational Quantum Circuits with Classical Neural Networks
Sangyun Lee, Hyukjoon Kwon, Jae Sung Lee
Entropy plays a crucial role in both physics and information science, encompassing classical and quantum domains. In this work, we present the Quantum Neural Entropy Estimator (QNE…
Gaussian boson sampling with click-counting detectors
Gabriele Bressanini, Hyukjoon Kwon, M. S. Kim
Gaussian boson sampling constitutes a prime candidate for an experimental demonstration of quantum advantage within reach with current technological capabilities. The original prop…
Engineering a heat engine purely driven by quantum coherence
Stefan Aimet, Hyukjoon Kwon
The question of whether quantum coherence is a resource beneficial or detrimental to the performance of quantum heat engines has been thoroughly studied but remains undecided. To i…
Demonstrating Quantum Microscopic Reversibility Using Coherent States of Light
Marco Bellini, Hyukjoon Kwon, Nicola Biagi +3
The principle of microscopic reversibility lies at the core of fluctuation theorems, which have extended our understanding of the second law of thermodynamics to the statistical le…
Speed limit for a highly irreversible process and tight finite-time Landauer's bound
Jae Sung Lee, Sangyun Lee, Hyukjoon Kwon +1
Landauer's bound is the minimum thermodynamic cost for erasing one bit of information. As this bound is achievable only for quasistatic processes, finite-time operation incurs addi…
Faster Born probability estimation via gate merging and frame optimisation
Nikolaos Koukoulekidis, Hyukjoon Kwon, Hyejung H. Jee +2
Outcome probability estimation via classical methods is an important task for validating quantum computing devices. Outcome probabilities of any quantum circuit can be estimated us…
Noise thresholds for classical simulability of non-linear Boson sampling
Gabriele Bressanini, Hyukjoon Kwon, M. S. Kim
Boson sampling, a computational problem conjectured to be hard to simulate on a classical machine, is a promising candidate for an experimental demonstration of quantum advantage u…
Many-body probes for quantum features of spacetime
Hadrien Chevalier, Hyukjoon Kwon, Kiran E. Khosla +2
Many theories of quantum gravity can be understood as imposing a minimum length scale the signatures of which can potentially be seen in precise table top experiments. In this work…
Reversing Lindblad Dynamics via Continuous Petz Recovery Map
Hyukjoon Kwon, Rick Mukherjee, M. S. Kim
An important issue in developing quantum technology is that quantum states are so sensitive to noise. We propose a protocol that introduces reverse dynamics, in order to precisely…
Field-gradient measurement using a Stern-Gerlach atomic interferometer with butterfly geometry
Changhun Oh, Hyukjoon Kwon, Liang Jiang +1
Atomic interferometers have been studied as a promising device for precise sensing of external fields. Among various configurations, a particular configuration with a butterfly-sha…
Violating the Leggett-Garg inequalities with classical light
Hadrien Chevalier, A. J. Paige, Hyukjoon Kwon +1
In an endeavour to better define the distinction between classical macroscopic and quantum microscopic regimes, the Leggett-Garg inequalities were established as a test of macrosco…
Quantum Delocalised-Interactions
A. J. Paige, Hyukjoon Kwon, Selwyn Simsek +3
Classical mechanics obeys the intuitive logic that a physical event happens at a definite spatial point. Entanglement however, breaks this logic by enabling interactions without a…
Condition on the Rényi Entanglement Entropy under Stochastic Local Manipulation
Hyukjoon Kwon, A. J. Paige, M. S. Kim
The Rényi entanglement entropy (REE) is an entanglement quantifier considered as a natural generalisation of the entanglement entropy. When it comes to stochastic local operations…
Quantum secure learning with classical samples
Wooyeong Song, Youngrong Lim, Hyukjoon Kwon +5
Studies addressing the question "Can a learner complete the learning securely?" have recently been spurred from the standpoints of fundamental theory and potential applications. In…
Quantum one-time tables for unconditionally secure qubit-commitment
Seok Hyung Lie, Hyukjoon Kwon, M. S Kim +1
The commodity-based cryptography is an alternative approach to realize conventionally impossible cryptographic primitives such as unconditionally secure bit-commitment by consuming…
Fluctuation Theorems for a Quantum Channel
Hyukjoon Kwon, M. S. Kim
We establish the general framework of quantum fluctuation theorems by finding the symmetry between the forward and backward transitions of any given quantum channel. The Petz recov…
Nonclassicality as a Quantifiable Resource for Quantum Metrology
Hyukjoon Kwon, Kok Chuan Tan, Tyler Volkoff +1
We establish the nonclassicality of continuous-variable states as a resource for quantum metrology. Based on the quantum Fisher information of multimode quadratures, we introduce t…
Comment on "Quantifying quantum coherence with quantum Fisher information"
Hyukjoon Kwon, Kok Chuan Tan, Seongjeon Choi +1
We show that contrary to the claim in Sci. Rep. 7, 15492 (2017), the quantum Fisher information itself is not a valid coherence measure based on the resource theory of coherence be…
Coherence, Quantum Fisher Information, Superradiance and Entanglement are Interconvertible Resources
Kok Chuan Tan, Seongjeon Choi, Hyukjoon Kwon +1
We demonstrate that quantum Fisher information and superradiance can be formulated as coherence measures in accordance with the resource theory of coherence, thus establishing a di…
Clock-work trade-off relation for coherence in quantum thermodynamics
Hyukjoon Kwon, Hyunseok Jeong, David Jennings +2
In thermodynamics, quantum coherences - superpositions between energy eigenstates - behave in distinctly nonclassical ways. Recently mathematical frameworks have emerged to account…