115 citations · 813 across the 32 of their papers we have counts for
39 papers
Tight Universal Bounds on Quantum Data Hiding with Multipartite Werner States
Oren Akresh, Jacob Beckey, Felix Leditzky
Quantum data hiding concerns pairs of states which are highly distinguishable with global measurements, yet nearly indistinguishable when restricted to local operations and classic…
Compatibility of quantum instruments
Chloe Kim, Yujie Zhang, Eric Chitambar +2
Measurement compatibility asks whether a family of quantum measurements can be simulated by one parent measurement followed by classical post-processing. We extend this measurement…
Randomness of exact unitary designs under symmetry
Christopher Vairogs, Felix Leditzky
We define the unitary design strength of a finite unitary ensemble to be the maximal integer for which its -th statistical moment is identical to that of the unitary group.…
A mixing time method for estimating the sample complexity of quantum state discrimination
Juntai Zhou, Felix Leditzky
We develop a mixing time method for estimating the sample complexity of quantum state discrimination. We start with considering the minimum-error discrimination of geometrically un…
A depolarizing choir sings in Gaussian harmony
Rabsan Galib Ahmed, Sujeet Bhalerao, Sungjai Lee +4
We study the noise threshold for positive quantum capacity for the qubit depolarizing channel. We explore analytically the action of the qubit depolarizing channel on the symmetric…
Product testing with single-copy measurements
Jacob Beckey, Luke Coffman, Ariel Shlosberg +2
In this work, we study the sample complexity of two variants of product testing when restricted to single-copy measurements. In particular, we consider both bipartite product testi…
Improving quantum communication rates with permutation-invariant codes
Sujeet Bhalerao, Felix Leditzky
In this work we improve the quantum communication rates of various quantum channels of interest using permutation-invariant quantum codes. We focus in particular on parametrized fa…
A resource theory of asynchronous quantum information processing
Chloe Kim, Eric Chitambar, Felix Leditzky
In standard quantum teleportation, the receiver must wait for a classical message from the sender before subsequently processing the transmitted quantum information. However, in po…
On the distinguishability of geometrically uniform quantum states
Juntai Zhou, Stefano Chessa, Eric Chitambar +1
A geometrically uniform (GU) ensemble is a uniformly weighted quantum state ensemble generated from a fixed state by a unitary representation of a finite group . In this work we…
Capacities of Entanglement Distribution From a Central Source
Xinan Chen, Stefano Chessa, Ian George +2
Distribution of entanglement is an essential task in quantum information processing and the realization of quantum networks. In our work, we theoretically investigate the scenario…
Localizing multipartite entanglement with local and global measurements
Christopher Vairogs, Samihr Hermes, Felix Leditzky
We study the task of localizing multipartite entanglement in pure quantum states onto a subsystem by measuring the remaining systems. To this end, we fix a multipartite entanglemen…
Approximate Unitary -Designs from Shallow, Low-Communication Circuits
Nicholas LaRacuente, Felix Leditzky
Random unitaries are useful in quantum information and related fields, but hard to generate with limited resources. An approximate unitary -design is an ensemble of unitaries wi…
Multivariate Fidelities
Theshani Nuradha, Hemant K. Mishra, Felix Leditzky +1
The main contribution of our paper is to introduce a number of multivariate quantum fidelities and show that they satisfy several desirable properties that are natural extensions o…
An Operational Framework for Nonclassicality in Quantum Communication Networks
Brian Doolittle, Felix Leditzky, Eric Chitambar
Quantum resources, such as entanglement or quantum communication, offer significant communication advantages in information processing. We develop an operational framework for real…
Probing multipartite entanglement through persistent homology
Gregory A. Hamilton, Felix Leditzky
We propose a study of multipartite entanglement through persistent homology, a tool used in topological data analysis. In persistent homology, a 1-parameter filtration of simplicia…
On the Duality of Teleportation and Dense Coding
Eric Chitambar, Felix Leditzky
Quantum teleportation is a quantum communication primitive that allows a long-distance quantum channel to be built using pre-shared entanglement and one-way classical communication…
On the separation of correlation-assisted sum capacities of multiple access channels
Akshay Seshadri, Felix Leditzky, Vikesh Siddhu +1
The capacity of a channel characterizes the maximum rate at which information can be transmitted through the channel asymptotically faithfully. For a channel with multiple senders…
Bounding quantum capacities via partial orders and complementarity
Christoph Hirche, Felix Leditzky
Quantum capacities are fundamental quantities that are notoriously hard to compute and can exhibit surprising properties such as superadditivity. Thus, a vast amount of literature…
The platypus of the quantum channel zoo
Felix Leditzky, Debbie Leung, Vikesh Siddhu +2
Understanding quantum channels and the strange behavior of their capacities is a key objective of quantum information theory. Here we study a remarkably simple, low-dimensional, si…
Generic nonadditivity of quantum capacity in simple channels
Felix Leditzky, Debbie Leung, Vikesh Siddhu +2
Determining capacities of quantum channels is a fundamental question in quantum information theory. Despite having rigorous coding theorems quantifying the flow of information acro…
Adaptive estimation of quantum observables
Ariel Shlosberg, Andrew J. Jena, Priyanka Mukhopadhyay +3
The accurate estimation of quantum observables is a critical task in science. With progress on the hardware, measuring a quantum system will become increasingly demanding, particul…
Optimality of the pretty good measurement for port-based teleportation
Felix Leditzky
Port-based teleportation (PBT) is a protocol in which Alice teleports an unknown quantum state to Bob using measurements on a shared entangled multipartite state called the port st…
Efficient and Low-Backaction Quantum Measurement Using a Chip-Scale Detector
Eric I. Rosenthal, Christian M. F. Schneider, Maxime Malnou +13
Superconducting qubits are a leading platform for scalable quantum computing and quantum error correction. One feature of this platform is the ability to perform projective measure…
Upper bounds on device-independent quantum key distribution rates and a revised Peres conjecture
Rotem Arnon, Felix Leditzky
Device-independent quantum key distribution (DIQKD) is one of the most challenging tasks in quantum cryptography. The protocols and their security are based on the existence of Bel…