590 citations · 2.4k across the 19 of their papers we have counts for
19 papers
Demonstrating quantum coherence and metrology that is resilient to transversal noise
Chao Zhang, Thomas R. Bromley, Yun-Feng Huang +7
Quantum systems can be exploited for disruptive technologies but in practice quantum features are fragile due to noisy environments. Quantum coherence, a fundamental such feature,…
Accessible bounds for general quantum resources
Thomas R. Bromley, Marco Cianciaruso, Sofoklis Vourekas +2
The recent development of general quantum resource theories has given a sound basis for the quantification of useful quantum effects. Nevertheless, the evaluation of a resource mea…
Characterising two-sided quantum correlations beyond entanglement via metric-adjusted f-correlations
Marco Cianciaruso, Irénée Frérot, Tommaso Tufarelli +1
We introduce an infinite family of quantifiers of quantum correlations beyond entanglement which vanish on both classical-quantum and quantum-classical states and are in one-to-one…
Certification and Quantification of Multilevel Quantum Coherence
Martin Ringbauer, Thomas R. Bromley, Marco Cianciaruso +6
Quantum coherence, present whenever a quantum system exists in a superposition of multiple classically distinct states, marks one of the fundamental departures from classical physi…
Role of non-Markovianity and backflow of information in the speed of quantum evolution
Marco Cianciaruso, Sabrina Maniscalco, Gerardo Adesso
We consider a two-level open quantum system undergoing either pure dephasing, dissipative, or multiply decohering dynamics and show that, whenever the dynamics is non-Markovian, th…
Converting multilevel nonclassicality into genuine multipartite entanglement
Bartosz Regula, Marco Piani, Marco Cianciaruso +3
Characterizing genuine quantum resources and determining operational rules for their manipulation are crucial steps to appraise possibilities and limitations of quantum technologie…
An introduction to quantum discord and non-classical correlations beyond entanglement
Gerardo Adesso, Marco Cianciaruso, Thomas R. Bromley
In this didactic article we explore the concept of quantum correlations beyond entanglement. We begin by introducing and motivating the classically correlated states and then showi…
Measures and applications of quantum correlations
Gerardo Adesso, Thomas R. Bromley, Marco Cianciaruso
Quantum information theory is built upon the realisation that quantum resources like coherence and entanglement can be exploited for novel or enhanced ways of transmitting and mani…
Classical nature of ordered quantum phases and origin of spontaneous symmetry breaking
M. Cianciaruso, S. M. Giampaolo, L. Ferro +4
We analyse the nature of spontaneous symmetry breaking in complex quantum systems by investigating the long-standing conjecture that the maximally symmetry-breaking quantum ground…
Robustness of asymmetry and coherence of quantum states
Marco Piani, Marco Cianciaruso, Thomas R. Bromley +3
Quantum states may exhibit asymmetry with respect to the action of a given group. Such an asymmetry of states can be considered as a resource in applications such as quantum metrol…
Robustness of coherence: An operational and observable measure of quantum coherence
Carmine Napoli, Thomas R. Bromley, Marco Cianciaruso +3
Quantifying coherence is an essential endeavour for both quantum foundations and quantum technologies. Here the robustness of coherence is defined and proven a full monotone in the…
Observation of time-invariant coherence in a room temperature quantum simulator
Isabela A. Silva, Alexandre M. Souza, Thomas R. Bromley +9
The ability to live in coherent superpositions is a signature trait of quantum systems and constitutes an irreplaceable resource for quantum-enhanced technologies. However, decoher…
Generalized Geometric Quantum Speed Limits
Diego Paiva Pires, Marco Cianciaruso, Lucas C. Céleri +2
The attempt to gain a theoretical understanding of the concept of time in quantum mechanics has triggered significant progress towards the search for faster and more efficient quan…
Accessible quantification of multiparticle entanglement
Marco Cianciaruso, Thomas R. Bromley, Gerardo Adesso
Entanglement is a key ingredient for quantum technologies and a fundamental signature of quantumness in a broad range of phenomena encompassing many-body physics, thermodynamics, c…
Frozen Quantum Coherence
Thomas R. Bromley, Marco Cianciaruso, Gerardo Adesso
We analyse under which dynamical conditions the coherence of an open quantum system is totally unaffected by noise. For a single qubit, specific measures of coherence are found to…
Entanglement and quantum correlations in many-body systems: a unified approach via local unitary operations
M. Cianciaruso, S. M. Giampaolo, W. Roga +3
Local unitary operations allow for a unifying approach to the quantification of quantum correlations among the constituents of a bipartite quantum system. For pure states, the dist…
Universal freezing of quantum correlations within the geometric approach
Marco Cianciaruso, Thomas R. Bromley, Wojciech Roga +2
Quantum correlations in a composite system can be measured by resorting to a geometric approach, according to which the distance from the state of the system to a suitable set of c…
Classical nature of ordered phases: origin of spontaneous symmetry breaking
M. Cianciaruso, L. Ferro, S. M. Giampaolo +2
We investigate the nature of spontaneous symmetry breaking in complex quantum systems by conjecturing that the maximally symmetry breaking quantum ground states are the most classi…
Unifying approach to the quantification of bipartite correlations by Bures distance
Thomas R. Bromley, Marco Cianciaruso, Rosario Lo Franco +1
The notion of distance defined on the set of states of a composite quantum system can be used to quantify total, quantum and classical correlations in a unifying way. We provide ne…