1.2k citations · 16.9k across the 158 of their papers we have counts for
134 papers · 1 filter
Resource-efficient fault-tolerant one-way quantum repeater with code concatenation
Kah Jen Wo, Guus Avis, Filip Rozpędek +6
One-way quantum repeaters where loss and operational errors are counteracted by quantum error correcting codes can ensure fast and reliable qubit transmission in quantum networks.…
Achieving metrological limits using ancilla-free quantum error-correcting codes
Sisi Zhou, Argyris Giannisis Manes, Liang Jiang
Quantum error correction (QEC) is theoretically capable of achieving the ultimate estimation limits in noisy quantum metrology. However, existing quantum error-correcting codes des…
Conditional not displacement: fast multi-oscillator control with a single qubit
Asaf A. Diringer, Eliya Blumenthal, Avishay Grinberg +2
Bosonic encoding is an approach for quantum information processing, promising lower hardware overhead by encoding in the many levels of a harmonic oscillator mode. Scaling to multi…
Quantum repeaters: From quantum networks to the quantum internet
Koji Azuma, Sophia E. Economou, David Elkouss +4
A quantum internet is the holy grail of quantum information processing, enabling the deployment of a broad range of quantum technologies and protocols on a global scale. However, n…
Autonomous quantum error correction and fault-tolerant quantum computation with squeezed cat qubits
Qian Xu, Guo Zheng, Yu-Xin Wang +3
We propose an autonomous quantum error correction scheme using squeezed cat (SC) code against the dominant error source, excitation loss, in continuous-variable systems. Through re…
Error Suppression for Arbitrary-Size Black Box Quantum Operations
Gideon Lee, Connor T. Hann, Shruti Puri +2
Efficient suppression of errors without full error correction is crucial for applications with NISQ devices. Error mitigation allows us to suppress errors in extracting expectation…
Experimental Realization and Characterization of Stabilized Pair Coherent States
Jeffrey M. Gertler, Sean van Geldern, Shruti Shirol +2
The pair coherent state (PCS) is a theoretical extension of the Glauber coherent state to two harmonic oscillators. It is an interesting class of non-Gaussian continuous-variable e…
Construction of Bias-preserving Operations for Pair-cat Code
Ming Yuan, Qian Xu, Liang Jiang
Fault-tolerant quantum computation with depolarization error often requires demanding error threshold and resource overhead. If the operations can maintain high noise bias -- domin…
Quantum transduction is enhanced by single mode squeezing operators
Changchun Zhong, Mingrui Xu, Aashish Clerk +2
Quantum transduction is an essential ingredient in scaling up distributed quantum architecture and is actively pursued based on various physical platforms. However, demonstrating a…
Information transmission with continuous variable quantum erasure channels
Changchun Zhong, Changhun Oh, Liang Jiang
Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different type of chan…
Quantum capacity and codes for the bosonic loss-dephasing channel
Peter Leviant, Qian Xu, Liang Jiang +1
Bosonic qubits encoded in continuous-variable systems provide a promising alternative to two-level qubits for quantum computation and communication. So far, photon loss has been th…
Tailored XZZX codes for biased noise
Qian Xu, Nam Mannucci, Alireza Seif +3
Quantum error correction (QEC) for generic errors is challenging due to the demanding threshold and resource requirements. Interestingly, when physical noise is biased, we can tail…
Preparation of Metrological States in Dipolar-Interacting Spin Systems
Tian-Xing Zheng, Anran Li, Jude Rosen +7
Spin systems are an attractive candidate for quantum-enhanced metrology. Here we develop a variational method to generate metrological states in small dipolar-interacting ensembles…
Quantum capacities of transducers
Chiao-Hsuan Wang, Fangxin Li, Liang Jiang
High-performance quantum transducers, which faithfully convert quantum information between disparate physical carriers, are essential in quantum science and technology. Different f…
Summary: Chicago Quantum Exchange (CQE) Pulse-level Quantum Control Workshop
Kaitlin N. Smith, Gokul Subramanian Ravi, Thomas Alexander +14
Quantum information processing holds great promise for pushing beyond the current frontiers in computing. Specifically, quantum computation promises to accelerate the solving of ce…
Quantum transduction with microwave and optical entanglement
Changchun Zhong, Xu Han, Liang Jiang
Quantum transduction refers to the coherent conversion between microwave and optical states, which can be achieved by quantum teleportation if given high fidelity microwave-optical…
Generalized matching condition for unity efficiency quantum transduction
Chiao-Hsuan Wang, Mengzhen Zhang, Liang Jiang
Coherently converting quantum states between distinct elements via quantum transducers remains a crucial yet challenging task in quantum science. Especially in demand is quantum tr…
Quantum-inspired classical algorithm for molecular vibronic spectra
Changhun Oh, Youngrong Lim, Yat Wong +2
We have recently seen the first plausible claims for quantum advantage using sampling problems such as random circuit sampling and Gaussian boson sampling. The obvious next step is…
Algebraic structure of path-independent quantum control
Wen-Long Ma, Shu-Shen Li, Liang Jiang
Path-independent (PI) quantum control has recently been proposed to integrate quantum error correction and quantum control [Phys. Rev. Lett. 125, 110503 (2020)], achieving fault-to…
Universal interference-based construction of Gaussian operations in hybrid quantum systems
Mengzhen Zhang, Shoumik Chowdhury, Liang Jiang
Beam-splitter operations are an indispensable resource for processing quantum information encoded in bosonic modes. However, in hybrid quantum systems, it can be challenging to imp…
Finite Rate QLDPC-GKP Coding Scheme that Surpasses the CSS Hamming Bound
Nithin Raveendran, Narayanan Rengaswamy, Filip Rozpędek +3
Quantum error correction has recently been shown to benefit greatly from specific physical encodings of the code qubits. In particular, several researchers have considered the indi…
Classical simulation of boson sampling based on graph structure
Changhun Oh, Youngrong Lim, Bill Fefferman +1
Boson sampling is a fundamentally and practically important task that can be used to demonstrate quantum supremacy using noisy intermediate-scale quantum devices. In this work, we…
Quantum advantages for Pauli channel estimation
Senrui Chen, Sisi Zhou, Alireza Seif +1
We show that entangled measurements provide an exponential advantage in sample complexity for Pauli channel estimation, which is both a fundamental problem and a practically import…
Distributed quantum phase sensing for arbitrary positive and negative weights
Changhun Oh, Liang Jiang, Changhyoup Lee
Estimation of a global parameter defined as a weighted linear combination of unknown multiple parameters can be enhanced by using quantum resources. Advantageous quantum strategies…