Summary
Topological P-wave superfluids with Isotopic K mixtureS:
Pairing of fermions lies at the heart of superfluidity and superconductivity, paradigmatic many-body phenomena arising at all energy scales in Nature – from ultracold to Quark matter. In particular, pairing between fermions with non-zero angular momentum emerges as a key mechanism at the basis of a wealth of unconventional fermionic superfluids, as for the A phase in 3He or electrons in high-Tc superconductors. More specifically, p-wave pairing in 2D is expected to induce superfluid phases with non-trivial topological features, as chirality and anyonic vortex excitations with non-Abelian braiding statistics.
The high level of control over the system parameters, together with detection and probing capabilities down to the single atom level, makes of ultracold atomic gases an ideal platform towards the realization and investigation of such paradigmatic yet elusive strongly interacting phases. Despite this, the experimental observation of p-wave superfluidity in atomic gases has never been achieved so far.
ToPIKS plans to realize a 2D system with strong p-wave interactions in ultracold Bose-Fermi mixtures of 39K and 40K atoms, on the repulsive side of a Fose-Bose s-wave Feshbach resonance, where the system sustains a heteronuclear fermionic molecular state. The virtual exchange of the lighter 39K bosonic atoms between two 39K40K molecules will in turn induce an effective dimer-dimer p-wave attraction.
The key novelty of this approach consists in the possibility to stabilize the system against inelastic losses by promoting a small but finite Bose-Bose repulsion. This is a striking advantage in comparison with previously existing systems exploiting homonuclear p-wave Feshbach resonances, intrinsically suffering from strong 3-body recombination. At the same time, the system maintains the high degree of controllability of atomic gases with Feshbach tunable interactions.
Pairing of fermions lies at the heart of superfluidity and superconductivity, paradigmatic many-body phenomena arising at all energy scales in Nature – from ultracold to Quark matter. In particular, pairing between fermions with non-zero angular momentum emerges as a key mechanism at the basis of a wealth of unconventional fermionic superfluids, as for the A phase in 3He or electrons in high-Tc superconductors. More specifically, p-wave pairing in 2D is expected to induce superfluid phases with non-trivial topological features, as chirality and anyonic vortex excitations with non-Abelian braiding statistics.
The high level of control over the system parameters, together with detection and probing capabilities down to the single atom level, makes of ultracold atomic gases an ideal platform towards the realization and investigation of such paradigmatic yet elusive strongly interacting phases. Despite this, the experimental observation of p-wave superfluidity in atomic gases has never been achieved so far.
ToPIKS plans to realize a 2D system with strong p-wave interactions in ultracold Bose-Fermi mixtures of 39K and 40K atoms, on the repulsive side of a Fose-Bose s-wave Feshbach resonance, where the system sustains a heteronuclear fermionic molecular state. The virtual exchange of the lighter 39K bosonic atoms between two 39K40K molecules will in turn induce an effective dimer-dimer p-wave attraction.
The key novelty of this approach consists in the possibility to stabilize the system against inelastic losses by promoting a small but finite Bose-Bose repulsion. This is a striking advantage in comparison with previously existing systems exploiting homonuclear p-wave Feshbach resonances, intrinsically suffering from strong 3-body recombination. At the same time, the system maintains the high degree of controllability of atomic gases with Feshbach tunable interactions.
Unfold all
/
Fold all
More information & hyperlinks
| Web resources: | https://cordis.europa.eu/project/id/101029996 |
| Start date: | 01-04-2021 |
| End date: | 31-03-2023 |
| Total budget - Public funding: | 160 932,48 Euro - 160 932,00 Euro |
Cordis data
Original description
Topological P-wave superfluids with Isotopic K mixtureS:Pairing of fermions lies at the heart of superfluidity and superconductivity, paradigmatic many-body phenomena arising at all energy scales in Nature – from ultracold to Quark matter. In particular, pairing between fermions with non-zero angular momentum emerges as a key mechanism at the basis of a wealth of unconventional fermionic superfluids, as for the A phase in 3He or electrons in high-Tc superconductors. More specifically, p-wave pairing in 2D is expected to induce superfluid phases with non-trivial topological features, as chirality and anyonic vortex excitations with non-Abelian braiding statistics.
The high level of control over the system parameters, together with detection and probing capabilities down to the single atom level, makes of ultracold atomic gases an ideal platform towards the realization and investigation of such paradigmatic yet elusive strongly interacting phases. Despite this, the experimental observation of p-wave superfluidity in atomic gases has never been achieved so far.
ToPIKS plans to realize a 2D system with strong p-wave interactions in ultracold Bose-Fermi mixtures of 39K and 40K atoms, on the repulsive side of a Fose-Bose s-wave Feshbach resonance, where the system sustains a heteronuclear fermionic molecular state. The virtual exchange of the lighter 39K bosonic atoms between two 39K40K molecules will in turn induce an effective dimer-dimer p-wave attraction.
The key novelty of this approach consists in the possibility to stabilize the system against inelastic losses by promoting a small but finite Bose-Bose repulsion. This is a striking advantage in comparison with previously existing systems exploiting homonuclear p-wave Feshbach resonances, intrinsically suffering from strong 3-body recombination. At the same time, the system maintains the high degree of controllability of atomic gases with Feshbach tunable interactions.
Status
TERMINATEDCall topic
MSCA-IF-2020Update Date
28-04-2024
Images
No images available.
Geographical location(s)
Structured mapping
