Josephson Junction Non-Foster Broadband Impedance Matching for Axion Dark Matter Detection

Proposes using a Josephson junction's negative inductance as a non-Foster circuit element to bypass Bode-Fano bandwidth limits in axion searches, with WRSPICE simulations demonstrating ~250x scan rate improvement over passive resonant matching networks.

#QuantumSensing #DarkMatter #Superconducting

Superconducting Parallel-Plate Resonators for Single Electron Spin Detection

Novel multilayer superconducting resonators achieve Purcell factor >10¹⁵ and 5× stronger spin-resonator coupling, enabling ~41× faster single-spin photon counting and microwave-only dispersive spin readout without single-photon detectors.

#QuantumSensing #SpinQubits #Superconducting

China develops new ultra-cold alloy that can reach -273°C without helium — could enable compact cooling for superconducting quantum chips, military equipment, and beyond Compact cryogenic cooling systems incoming?

#China #develops new #UltraCold #alloy that can reach -273°C without #helium — could enable compact cooling for #superconducting #quantum #chips, #military #equipment, and beyond tomshardware.com/tech-industr...

SEEQC Demonstrates Full-Stack Qubit Control Logic Integrated at 10 mK

SEEQC published in Nature Electronics: SFQ digital control circuits co-integrated with a 5-qubit chip at 10 mK via flip-chip bonding. Single-qubit gate fidelities hit 99.9%, no quasiparticle poisoning detected, addressing the wiring bottleneck at scale.

#QuantumComputing #Superconducting #News

A study examines the classical limit of a quantum formulation of the Jarzynski equality using a nonlinear Jaynes–Cummings Hamiltonian that models a field in a superconducting optical cavity with a Kerr medium.
#Jarzynski #superconducting
Details: doi.org/10.1016/j.qr...

[2024 OPEN ACCESS]
Stabilization of Bi vibration along c-axis in BiS2-based layered compounds La(O,F)Bi(S,Se)2 by Se substitution
2024 Appl. Phys. Express 17 013002

iopscience.iop.org/article/10.3...

#APEX
#OpenAccess
#Physics
#thermoelectric
#superconducting
#bismuth

[2025 OPEN ACCESS]
Frequency trimming of superconducting qubits using RF-biased ICP annealing
2025 Appl. Phys. Express 18 066501

iopscience.iop.org/article/10.3...

#APEX
#OpenAccess
#Physics
#superconducting
#qubit
#anneal
#quantum
#computing

[Open Access]
How high a field has been and can be achieved in superconducting bulk niobium cavities: the role of RRR
2025 Jpn. J. Appl. Phys. 64 018002

iopscience.iop.org/article/10.3...

#JJAP
#physics
#Openaccess
#superconducting
#cavity
#accelerator
#niobium
#RRR
#SRF
#quench

[Open Access]
On the applicability ranges of Tc formulas for proximity-coupled thin SN and SS bilayers
2025 Jpn. J. Appl. Phys. 64 018001

iopscience.iop.org/article/10.3...

#JJAP
#physics
#Openaccess
#proximity
#superconducting
#transition
#sensor
#bilayer

D-Wave Quantum will acquire Quantum Circuits for $550M ($300M in stock and $250M in cash).

#QBTS #QBTSStock #QBTSNews #QuantumCircuits #DWaveQuantum #DWaveQuantumStock #DWaveQuantumNews #QuantumComputing #Superconducting #GateModel #Annealing #RobSchoelkopf
$QBTS

The Engineering Division is part of a multi-lab effort to build #superconducting magnets for the Large Hadron Collider Upgrade project at #CERN.

A win for #fusion superconducting technology!

We’re thrilled that our team's efforts have been recognised with a prestigious @iop.org Business Innovation Award, for our work developing compact, powerful high temperature #superconducting (HTS) technology for #fusionenergy.

📢 The first articles of the thematic issue “#Superconducting artificial neural networks and quantum circuits” edited by Anatolie S. Sidorenko in the #BJNANO 💎🔓 are online:
👉 https://tinyurl.com/4t4s7rah
More to come soon! 
#spintronics #nanoelectronics #QuantumElectronics

Partnership to advance superconducting quantum chip manufacturing SEEQC has announced a strategic manufacturing partnership with Taiwan's Industrial Technology Research Institute (ITRI). Under this collaboration, SEEQC and ITRI will develop an advanced process line dedicated to the production of SEEQC's proprietary Single Flux Quantum (SFQ) superconducting control chips, reinforcing the growth and scalability of the company's digital quantum technology initiatives. (Source: Adobe Stock) As part of the partnership, SEEQC will implement the new manufacturing line to establish a reliable, high-yield production environment.

SEEQC and ITRI forge partnership to advance #superconducting #quantum control chip manufacturing.

New Coating Method Stabilizes Fragile Magnetic Material for Next-Generation Quantum Devices An ultrathin protective coating developed by Professor Mark Hersam makes air-sensitive magnetic material compatible with quantum circuits and advanced measurements.

Molecule-based magnets could power #quantum devices, but they’re highly air-sensitive.

An NU team were able to stabilize the material while preserving its magnetic properties, making it compatible with #superconducting circuits.

Read more: www.mccormick.northwestern.edu/news/article...

Tokamak Energy announces fusion power plant magnet technology breakthrough - Tokamak Energy Tokamak Energy has recorded breakthrough results on the path to clean, limitless energy after replicating fusion power plant fields for the first time in its world-leading magnet system. Demo4 also de...

We're celebrating a world-first for #fusion and #superconducting magnet technology!

For the first time, we've replicated fusion power plant–relevant magnetic fields in a complete high-temperature superconducting (HTS) #magnet system.

Read more
👇
tokamakenergy.com/2025/11/19/t...

#Superconducting #qubit that lasts for #over 1 #millisecond is primed for #industrial #scaling

In a major step toward practical quantum computers, Princeton engineers have built a superconducting qubit that lasts 3X longer than today's best versions scitechupdates.com/s...

A win for #fusion and #superconducting technologies in Japan!

We’re proud to share that Tokamak Energy K.K. has won the New Market Entrant of the Year trophy at the 18th British Business Awards in Tokyo, hosted by the British Chamber of Commerce in Japan.

#FusionEnergy #SuperconductingTechnology

It's #nationalengineeringday and we're celebrating the engineers making #fusionenenergy and #superconducting technologies a reality for a clean, energy secure future.

Find out more:
👇
www.tokamakenergy.com

#FusionEnergy #Superconductors #Engineering

Last week, we officially launched Tokamak Energy K.K. in Tokyo, and this week, we were delighted to welcome UK Trade Envoy to Japan, @sharonhodgsonmp.bsky.social, to our Oxfordshire HQ to see first-hand the #fusion energy and #superconducting technology we're developing.

[OPEN ACCESS]
Interpretation of time-dependent current and resistance of HTS closed loop with superconducting joint considering flux creep
2023 Appl. Phys. Express 16 093002

iopscience.iop.org/article/10.3...

#APEX
#OpenAccess
#Physics
#HTS
#superconducting
#creep

[2024 OPEN ACCESS]
Temperature dependence of power transfer efficiency and power handling capability of wireless power transfer system using superconducting bulk coil
2024 17 043001

iopscience.iop.org/article/10.3...

#APEX
#Physics
#wireless
#superconducting
#bulk
#coil
#Cryocooler

[Open Access]
Chemical mechanical polishing for indium bond pad damascene processing
2024 Jpn. J. Appl. Phys. 63 03SP39

iopscience.iop.org/article/10.3...

#JJAP
#physics
#Openaccess
#Chemical
#Polishing
#CMP
#indium
#3D
#integration
#superconducting
#qubits
#wafer
#bonding

New Scheduling Algorithm Cuts Area and Boosts Throughput in AQFP Circuits

The new phase‑scheduling algorithm reduces AQFP circuit area by 25% and, with a throughput target, saves 6.8% area while boosting throughput 2.62‑fold, benchmarks show. Read more: getnews.me/new-scheduling-algorithm... #aqfp #superconducting

We’re scaling quantum computing even faster with Atlantic Quantum. Google Quantum AI was founded in 2012 and our mission today remains the same — build quantum computing for otherwise unsolvable problems. We’re making steady progress on…

https://get.mypost.to/pp8X5R
Google Quantum AI was founded in 2012 and our mission today remains the same ..
#quantum #computing #superconducting #google

Google acquires Atlantic Quantum Google has acquired Atlantic Quantum, an MIT-founded startup specializing in superconducting qubit hardware. The move is expected to help Google Quantum AI scale its hardware faster and push closer to building an error-corrected quantum computer. I believe quantum computing could ultimately have an even greater impact than artificial intelligence, and when the two fields converge, the world could change in unimaginable ways.

Google acquires Atlantic Quantum Google has acquired Atlantic Quantum, an MIT-founded startup specializing in superconducting qubit hardware. The move is expected to help Google Quantum AI scale its hardware faster and push closer to building an error-corrected quantum computer. I believe quantum computing could ultimately have an even greater impact than artificial intelligence, and when the two fields converge, the world could change in unimaginable ways.

Google acquires Atlantic Quantum Google has acquired Atlantic Quantum, an MIT-founded startup specializing in superconducting qubit hardware. The move is expected to help Google Quantum AI scale its hardware faster and push closer to building an error-corrected quantum computer. I believe quantum computing could ultimately have an even greater impact than artificial intelligence, and when the two fields converge, the world could change in unimaginable ways.

Google acquires Atlantic Quantum Google has acquired Atlantic Quantum, an MIT-founded startup specializing in superconducting qubit hardware. The move is expected to help Google Quantum AI scale its hardware faster and push closer to building an error-corrected quantum computer. I believe quantum computing could ultimately have an even greater impact than artificial intelligence, and when the two fields converge, the world could change in unimaginable ways.