228 citations · 1.2k across the 16 of their papers we have counts for
16 papers
Indefinite causal order in boxworld theories
Jessica Bavaresco, Ämin Baumeler, Yelena Guryanova +1
An astonishing feature of higher-order quantum theory is that it can accommodate indefinite causal order. In the simplest bipartite setting, there exist signaling correlations for…
Disease control as an optimization problem
Miguel Navascues, Costantino Budroni, Yelena Guryanova
In the context of epidemiology, policies for disease control are often devised through a mixture of intuition and brute-force, whereby the set of logically conceivable policies is…
Measuring the thermodynamic cost of timekeeping
A. N. Pearson, Y. Guryanova, P. Erker +4
All clocks, in some form or another, use the evolution of nature towards higher entropy states to quantify the passage of time. Due to the statistical nature of the second law and…
Overcoming Noise in Entanglement Distribution
Sebastian Ecker, Frédéric Bouchard, Lukas Bulla +8
Noise can be considered the natural enemy of quantum information. An often implied benefit of high-dimensional entanglement is its increased resilience to noise. However, manifesti…
Work estimation and work fluctuations in the presence of non-ideal measurements
Tiago Debarba, Gonzalo Manzano, Yelena Guryanova +2
From the perspective of quantum thermodynamics, realisable measurements cost work and result in measurement devices that are not perfectly correlated with the measured systems. We…
Quantum thermodynamics with multiple conserved quantities
Erick Hinds Mingo, Yelena Guryanova, Philippe Faist +1
In this chapter we address the topic of quantum thermodynamics in the presence of additional observables beyond the energy of the system. In particular we discuss the special role…
Ideal Projective Measurements Have Infinite Resource Costs
Yelena Guryanova, Nicolai Friis, Marcus Huber
We show that it is impossible to perform ideal projective measurements on quantum systems using finite resources. We identify three fundamental features of ideal projective measure…
Exploring the limits of no backward in time signalling
Yelena Guryanova, Ralph Silva, Anthony J. Short +3
We present an operational and model-independent framework to investigate the concept of no-backwards-in-time signaling. We define no-backwards-in-time signaling conditions, closely…
Almost quantum correlations violate the no-restriction hypothesis
Ana Belén Sainz, Yelena Guryanova, Antonio Acín +1
To identify which principles characterize quantum correlations, it is essential to understand in which sense this set of correlations differs from that of almost quantum correlatio…
Connecting processes with indefinite causal order and multi-time quantum states
Ralph Silva, Yelena Guryanova, Anthony J. Short +3
Recently, the possible existence of quantum processes with indefinite causal order has been extensively discussed, in particular using the formalism of process matrices. Here we gi…
Adjusting inequalities for detection-loophole-free steering experiments
Ana Belén Sainz, Yelena Guryanova, Will McCutcheon +1
We study the problem of certifying quantum steering in a detection-loophole-free manner in experimental situations that require post-selection. We present a method to find the modi…
Thermodynamics of quantum systems with multiple conserved quantities
Yelena Guryanova, Sandu Popescu, Anthony J. Short +2
We consider a generalisation of thermodynamics that deals with multiple conserved quantities at the level of individual quantum systems. Each conserved quantity, which, importantly…
Multiple Observers Can Share the Nonlocality of Half of an Entangled Pair by Using Optimal Weak Measurements
Ralph Silva, Nicolas Gisin, Yelena Guryanova +1
We investigate the trade-off between information gain and disturbance for a class of weak von Neumann measurements on spin- particles, and derive the unusual measureme…
Almost quantum correlations
Miguel Navascués, Yelena Guryanova, Matty J. Hoban +1
There have been a number of attempts to derive the set of quantum non-local correlations from reasonable physical principles. Here we introduce , a set of multipartite s…
Pre- and post-selected quantum states: density matrices, tomography, and Kraus operators
Ralph Silva, Yelena Guryanova, Nicolas Brunner +3
We present a general formalism for charecterizing 2-time quantum states, describing pre- and post-selected quantum systems. The most general 2-time state is characterized by a `den…
The Complete Quantum Cheshire Cat
Yelena Guryanova, Nicolas Brunner, Sandu Popescu
We show that a physical property can be entirely separated from the object it belongs to, hence realizing a complete quantum Cheshire cat. Our setup makes use of a type of quantum…