Thermometry in the quantum regime: recent theoretical progress

M Mehboudi, A Sanpera… - Journal of Physics A …, 2019 - iopscience.iop.org
Controlling and measuring the temperature in different devices and platforms that operate in
the quantum regime is, without any doubt, essential for any potential application. In this …

Holonomic quantum control by coherent optical excitation in diamond

BB Zhou, PC Jerger, VO Shkolnikov, FJ Heremans… - Physical review …, 2017 - APS
Although geometric phases in quantum evolution are historically overlooked, their active
control now stimulates strategies for constructing robust quantum technologies. Here, we …

Quantum thermal machine as a thermometer

PP Hofer, JB Brask, M Perarnau-Llobet, N Brunner - Physical review letters, 2017 - APS
We propose the use of a quantum thermal machine for low-temperature thermometry. A hot
thermal reservoir coupled to the machine allows for simultaneously cooling the sample while …

Using polarons for sub-nk quantum nondemolition thermometry in a bose-einstein condensate

M Mehboudi, A Lampo, C Charalambous, LA Correa… - Physical review …, 2019 - APS
We introduce a novel minimally disturbing method for sub-nK thermometry in a Bose-
Einstein condensate (BEC). Our technique is based on the Bose polaron model; namely, an …

Quantum sensing of temperature close to absolute zero in a Bose-Einstein condensate

JB Yuan, B Zhang, YJ Song, SQ Tang, XW Wang… - Physical Review A, 2023 - APS
We propose a theoretical scheme for quantum sensing of temperature close to absolute zero
in a quasi-one-dimensional Bose-Einstein condensate (BEC). In our scheme, a single-atom …

[HTML][HTML] Fundamental limits on low-temperature quantum thermometry with finite resolution

PP Potts, JB Brask, N Brunner - Quantum, 2019 - quantum-journal.org
While the ability to measure low temperatures accurately in quantum systems is important in
a wide range of experiments, the possibilities and the fundamental limits of quantum …

Exploring the effect of noise on the Berry phase

S Berger, M Pechal, AA Abdumalikov Jr, C Eichler… - Physical Review A …, 2013 - APS
We experimentally investigate the effects of noise on the adiabatic and cyclic geometric
phase, also termed the Berry phase. By introducing artificial fluctuations in the path of the …

Unruh-deWitt detectors in quantum superpositions of trajectories

J Foo, S Onoe, M Zych - Physical Review D, 2020 - APS
Unruh-deWitt detectors have been utilized widely as probes for quantum particles,
entanglement and spacetime curvature. Here, we extend the standard treatment of an Unruh …

Two-qubit quantum probes for the temperature of an Ohmic environment

F Gebbia, C Benedetti, F Benatti, R Floreanini, M Bina… - Physical Review A, 2020 - APS
We address a particular instance where open quantum systems may be used as quantum
probes for an emergent property of a complex system, as the temperature of a thermal bath …

Entanglement in curved spacetimes and cosmology

E Martin-Martinez, NC Menicucci - Classical and Quantum …, 2014 - iopscience.iop.org
We review recent results regarding entanglement in quantum fields in cosmological
spacetimes and related phenomena in flat spacetime such as the Unruh effect. We begin …